1.
Guitar
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The guitar is a musical instrument classified as a fretted string instrument with anywhere from four to 18 strings, usually having six. The sound is projected either acoustically, using a wooden or plastic and wood box, or through electrical amplifier. It is typically played by strumming or plucking the strings with the fingers, the guitar is a type of chordophone, traditionally constructed from wood and strung with either gut, nylon or steel strings and distinguished from other chordophones by its construction and tuning. There are three types of modern acoustic guitar, the classical guitar, the steel-string acoustic guitar, and the archtop guitar. The tone of a guitar is produced by the strings vibration, amplified by the hollow body of the guitar. The term finger-picking can also refer to a tradition of folk, blues, bluegrass. The acoustic bass guitar is an instrument that is one octave below a regular guitar. Early amplified guitars employed a body, but a solid wood body was eventually found more suitable during the 1960s and 1970s. As with acoustic guitars, there are a number of types of guitars, including hollowbody guitars, archtop guitars and solid-body guitars. The electric guitar has had a influence on popular culture. The guitar is used in a variety of musical genres worldwide. It is recognized as an instrument in genres such as blues, bluegrass, country, flamenco, folk, jazz, jota, mariachi, metal, punk, reggae, rock, soul. The term is used to refer to a number of chordophones that were developed and used across Europe, beginning in the 12th century and, later, in the Americas. The modern word guitar, and its antecedents, has applied to a wide variety of chordophones since classical times. Many influences are cited as antecedents to the modern guitar, at least two instruments called guitars were in use in Spain by 1200, the guitarra latina and the so-called guitarra morisca. The guitarra morisca had a back, wide fingerboard. The guitarra Latina had a sound hole and a narrower neck. By the 14th century the qualifiers moresca or morisca and latina had been dropped, and it had six courses, lute-like tuning in fourths and a guitar-like body, although early representations reveal an instrument with a sharply cut waist
2.
Bass guitar
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The bass guitar is a stringed instrument played primarily with the fingers or thumb, by plucking, slapping, popping, strumming, tapping, thumping, or picking with a plectrum, often known as a pick. The bass guitar is similar in appearance and construction to a guitar, but with a longer neck and scale length. The four-string bass, by far the most common, is tuned the same as the double bass. The bass guitar is an instrument, as it is notated in bass clef an octave higher than it sounds to avoid excessive ledger lines. Like the electric guitar, the guitar has pickups and it is plugged into an amplifier and speaker on stage, or into a larger PA system using a DI unit. Since the 1960s, the guitar has largely replaced the double bass in popular music as the bass instrument in the rhythm section. While types of basslines vary widely from one style of music to another, many styles of music utilise the bass guitar, including rock, heavy metal, pop, punk rock, country, reggae, gospel, blues, symphonic rock, and jazz. It is often a solo instrument in jazz, jazz fusion, Latin, funk, progressive rock and other rock, the adoption of a guitar form made the instrument easier to hold and transport than any of the existing stringed bass instruments. The addition of frets enabled bassists to play in more easily than on acoustic or electric upright basses. Around 100 of these instruments were made during this period, around 1947, Tutmarcs son, Bud, began marketing a similar bass under the Serenader brand name, prominently advertised in the nationally distributed L. D. Heater Music Company wholesale jobber catalogue of 1948, however, the Tutmarc family inventions did not achieve market success. In the 1950s, Leo Fender, with the help of his employee George Fullerton and his Fender Precision Bass, which began production in October 1951, became a widely copied industry standard. This split pickup, introduced in 1957, appears to have been two mandolin pickups, the pole pieces and leads of the coils were reversed with respect to each other, producing a humbucking effect. Humbucking is a design that electrically cancels the effect of any AC hum, the Fender Bass was a revolutionary new instrument, which could be easily transported, and which was less prone to feedback when amplified than acoustic bass instruments. Monk Montgomery was the first bass player to tour with the Fender bass guitar, roy Johnson, and Shifty Henry with Louis Jordan & His Tympany Five, were other early Fender bass pioneers. Bill Black, playing with Elvis Presley, switched from bass to the Fender Precision Bass around 1957. The bass guitar was intended to appeal to guitarists as well as upright bass players, following Fenders lead, in 1953, Gibson released the first short scale violin-shaped electric bass with extendable end pin, allowing it to be played upright or horizontally. In 1959 these were followed by the more conventional-looking EB-0 Bass, the EB-0 was very similar to a Gibson SG in appearance
3.
Violin
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The violin is a wooden string instrument in the violin family. It is the smallest and highest-pitched instrument in the family in regular use, smaller violin-type instruments are known, including the violino piccolo and the kit violin, but these are virtually unused in the 2010s. The violin typically has four strings tuned in fifths, and is most commonly played by drawing a bow across its strings. Violins are important instruments in a variety of musical genres. They are most prominent in the Western classical tradition and in varieties of folk music. They are also used in genres of folk including country music and bluegrass music. Electric violins are used in forms of rock music, further. The violin is sometimes called a fiddle, particularly in Irish traditional music and bluegrass. The violin was first known in 16th-century Italy, with further modifications occurring in the 18th and 19th centuries. In Europe it served as the basis for stringed instruments used in classical music, the viola. According to their reputation, the quality of their sound has defied attempts to explain or equal it, many of these trade instruments were formerly sold by Sears, Roebuck and Co. and other mass merchandisers. A person who makes or repairs violins is called a luthier or violinmaker, the parts of a violin are usually made from different types of wood and on the use of a pickup and an amplifier and speaker). Violins can be strung with gut, Perlon or other synthetic, the earliest stringed instruments were mostly plucked. Similar and variant types were probably disseminated along East-West trading routes from Asia into the Middle East, the first makers of violins probably borrowed from various developments of the Byzantine lira. These included the rebec, the Arabic rebab, the vielle, the earliest pictures of violins, albeit with three strings, are seen in northern Italy around 1530, at around the same time as the words violino and vyollon are seen in Italian and French documents. One of the earliest explicit descriptions of the instrument, including its tuning, is from the Epitome musical by Jambe de Fer, by this time, the violin had already begun to spread throughout Europe. The violin proved very popular, both among street musicians and the nobility, the French king Charles IX ordered Andrea Amati to construct 24 violins for him in 1560, one of these noble instruments, the Charles IX, is the oldest surviving violin. The Messiah or Le Messie made by Antonio Stradivari in 1716 remains pristine and it is now located in the Ashmolean Museum of Oxford
4.
Pickup (music technology)
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The signal from a pickup can also be recorded directly, using a DI box or broadcast on the radio or television. Most electric guitars and electric basses use magnetic pickups, acoustic guitars, upright basses and fiddles often use a piezoelectric pickup. A magnetic pickup consists of a permanent magnet with a core of such as alnico or ferrite. The pickup is most often mounted on the body of the instrument, Magnetic pickups used with string basses can be attached to the bridge. The permanent magnet creates a field, the motion of the vibrating steel strings disturbs the field, changing magnetic flux. The pickup is then connected with a cable to an amplifier which amplifies the signal to a sufficient magnitude of power to drive a loudspeaker. A pickup can also be connected to recording equipment via a patch cable, there may also be an internal preamplifier device mounted in an acoustic guitar or in an external box. When a preamp is used in way, it is between the pickup and cable and can significantly reduce the equivalent impedance of the pickup coil. The output voltage of magnetic pickups varies between 100 mV rms to over 1 V rms for some of the higher output types, some high-output pickups achieve this by employing very strong magnets, thus creating more flux and thereby more output. This can be detrimental to the sound because the magnets pull on the strings can cause problems with intonation as well as damp the strings. Other high-output pickups have more turns of wire to increase the voltage generated by the strings movement, however, this also increases the pickups output resistance/impedance, which can affect high frequencies if the pickup is not isolated by a buffer amplifier or a DI unit. The turns of wire in proximity to each other have an equivalent self-capacitance that and this resonance can accentuate certain frequencies, giving the pickup a characteristic tonal quality. The more turns of wire in the winding, the higher the output voltage, the inductive source impedance inherent in this type of transducer makes it less linear than other forms of pickups, such as piezo-electric or optical. The tonal quality produced by this nonlinearity is, however, subject to taste, the external load usually consists of resistance and capacitance between the hot lead and shield in the guitar cable. The electric cable also has a capacitance, which can be a significant portion of the overall system capacitance and this arrangement of passive components forms a resistively-damped second-order low-pass filter. Single coil pickups act like an antenna and are prone to pick up mains hum along with the musical signal. Mains hum consists of a signal at a nominal 50 or 60 Hz, depending on local alternating current frequency. The changing magnetic flux caused by the mains current links with the windings of the pickup, the pickups also are sensitive to the electromagnetic field from nearby cathode ray tubes in video monitors or televisions
5.
Semi-acoustic guitar
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A semi-acoustic guitar or hollow-body electric is a type of electric guitar that originates from the 1930s. It has both a box and one or more electric pickups. This is not the same as a guitar, which is an acoustic guitar with the addition of pickups or other means of amplification. This led makers to try a series of designs that focused on amplifying a guitar electrically through a loudspeaker, in 1936, Gibson made their first production run of electric guitars. These guitars, known as ES-150s were the first manufactured semi-acoustic guitars, Gibson based them on a standard production archtop, with f holes on the face of the guitars soundbox. This model resembled traditional jazz guitars that were popular at the time, the soundbox on the guitar let limited sound emit from the hollow body of the guitar. These guitars, however, could be electrically amplified via a Charlie Christian pickup, the clear sound of the pickups made the ES series immediately popular with jazz musicians. The first semi-acoustic guitars are thought of as an evolutionary step in the progression from acoustic guitars to full electric models. However, Gibson made the ES-150 several years after Rickenbacker made the first solid-body electric guitar, the ES series was merely an experiment the Gibson company used to test the potential success of electric guitars. The experiment was a successful venture, and the ES series is often referred to as the first successful electric guitar. The ES-150 was followed by the ES-250 a year later, in became a long line of semi acoustics for the Gibson company. In 1949 Gibson released two new models, the ES-175 and ES-5 and these guitars came standard with built-in electric pickups and are widely considered the first fully electric semi-acoustic guitars. Prior models were not built with pickups, rather, they came as attachments, several models, including the ES-350T by Gibson, were made in the 1950s to accommodate this growing demand by including a more comfortable version of the archtop model. Gibson and other makers followed these variations with a new type of guitar that featured a block of solid wood between the front and back sections of the guitars cutaway. This guitar still functioned acoustically, but had a resonant cavity inside. Gibson first manufactured this variant in 1958 and it is commonly referred to as a semi-hollow body guitar, because of the smaller, less open body. Rickenbacker also began making semi-acoustic guitars in 1958, when the company changed ownership in 1954, they hired German guitar crafter, Roger Rossmiesl. He developed the 300 series for Rickenbacker, which was a wide semi-acoustic that did not use a traditional f hole, rather it used a sleeker dash hole on one side of the guitar, the other side had a large pickguard
6.
Fender Esquire
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The Fender Esquire is a solid-body electric guitar manufactured by Fender, the first Spanish style guitar sold by Fender, debuting in 1950. Shortly after its introduction, a version was introduced and was renamed the Broadcaster a few months later. The Gretsch Company at the time marketed a set under the Broadkaster name. The more versatile Broadcaster/Telecaster has since become one of Fenders most popular models with dozens of variations produced, once the Telecaster was introduced, the Esquire became marketed as a lower-cost version. Over the following two decades, the availability of other low-cost models saw the Esquires sales decline and the model was discontinued in 1969, the model has since been reissued but remains a relatively niche guitar. The first prototype for the Esquire was completed by Leo Fender in the fall of 1949, the prototype shared with these guitars the now-familiar slab body shape with single cutaway to allow easier access to the upper frets. The neck, like the first Esquires manufactured in 1950, was made from a piece of maple without a truss rod. The neck was attached to the body with four screws and a plate, unlike in traditional guitar construction. Unlike the Esquire, the neck was wider at the nut, like the production models, it had a removable pickup cover, but unlike the production models, the cover had straight sides. The prototype had one pickup, as did Esquires manufactured from 1951 onwards. Over the winter of 1949/50, Fender refined the design, the neck width at the nut was narrowed, and the head modified to accommodate all six tuners on one side. A tone selector switch was added, and the controls were mounted on a parallel to the strings. Around the spring of 1950, Fender had completed a neck pickup design, the single pickup guitar was first manufactured in April 1950, and made its commercial debut as the Esquire in RTECs Spring catalogue of that year. Unlike the pinewood prototype, the bodies were made of solid ash, the dual pickup version was first manufactured in June of that year. Neither version had a rod at that time, though in November. The guitar was designed as an instrument with no acoustic manipulation of the tone. Rather the guitars pickup was designed and placed to transmit the richest signal for later manipulation by the tone switch, following the renaming of the dual pickup Broadcaster, production and promotion of the single pickup Esquire was briefly discontinued. It was reintroduced with a rod in January 1951
7.
Electric guitar
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The vibrations of the strings are sensed by a pickup, of which the most common type is the magnetic pickup, which uses the principle of direct electromagnetic induction. The signal generated by a guitar is too weak to drive a loudspeaker, so it is plugged into a guitar amplifier before being sent to a loudspeaker. The output of a guitar is an electric signal. Invented in 1931, the electric guitar was adopted by jazz guitarists. Early proponents of the guitar on record included Les Paul, Lonnie Johnson, Sister Rosetta Tharpe, T-Bone Walker. During the 1950s and 1960s, the guitar became the most important instrument in pop music. It has evolved into an instrument that is capable of a multitude of sounds and styles in genres ranging from pop and rock to country music, blues and jazz. It served as a component in the development of electric blues, rock and roll, rock music, heavy metal music. Electric guitar design and construction vary greatly in the shape of the body and the configuration of the neck, bridge, Guitars may have a fixed bridge or a spring-loaded hinged bridge that lets players bend the pitch of notes or chords up or down or perform vibrato effects. The sound of a guitar can be modified by new playing techniques such as string bending, tapping, hammering on, using audio feedback, in a small group, such as a power trio, one guitarist switches between both roles. In larger rock and metal bands, there is often a rhythm guitarist, many experiments at electrically amplifying the vibrations of a string instrument were made dating back to the early part of the 20th century. Patents from the 1910s show telephone transmitters were adapted and placed inside violins, hobbyists in the 1920s used carbon button microphones attached to the bridge, however, these detected vibration from the bridge on top of the instrument, resulting in a weak signal. With numerous people experimenting with electrical instruments in the 1920s and early 1930s, Electric guitars were originally designed by acoustic guitar makers and instrument manufacturers. Some of the earliest electric guitars adapted hollow-bodied acoustic instruments and used tungsten pickups, the first electrically amplified guitar was designed in 1931 by George Beauchamp, the general manager of the National Guitar Corporation, with Paul Barth, who was vice president. The maple body prototype for the one-piece cast aluminum frying pan was built by Harry Watson, commercial production began in late summer of 1932 by the Ro-Pat-In Corporation, in Los Angeles, a partnership of Beauchamp, Adolph Rickenbacker, and Paul Barth. In 1934, the company was renamed the Rickenbacker Electro Stringed Instrument Company, in that year Beauchamp applied for a United States patent for an Electrical Stringed Musical Instrument and the patent was issued in 1937. The Electro-Spanish Ken Roberts provided players a full 25 scale, with 17 frets free of the fretboard and it is estimated that fewer than 50 Electro-Spanish Ken Roberts were constructed between 1933 and 1937, fewer than 10 are known to survive today. The need for the guitar became apparent during the big band era as orchestras increased in size, particularly when acoustic guitars had to compete with large
8.
Rock music
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It has its roots in 1940s and 1950s rock and roll, itself heavily influenced by blues, rhythm and blues and country music. Rock music also drew strongly on a number of genres such as electric blues and folk. Musically, rock has centered on the guitar, usually as part of a rock group with electric bass guitar. Typically, rock is song-based music usually with a 4/4 time signature using a verse-chorus form, like pop music, lyrics often stress romantic love but also address a wide variety of other themes that are frequently social or political in emphasis. Punk was an influence into the 1980s on the subsequent development of subgenres, including new wave, post-punk. From the 1990s alternative rock began to rock music and break through into the mainstream in the form of grunge, Britpop. Similarly, 1970s punk culture spawned the visually distinctive goth and emo subcultures and this trio of instruments has often been complemented by the inclusion of other instruments, particularly keyboards such as the piano, Hammond organ and synthesizers. The basic rock instrumentation was adapted from the blues band instrumentation. A group of musicians performing rock music is termed a rock band or rock group, Rock music is traditionally built on a foundation of simple unsyncopated rhythms in a 4/4 meter, with a repetitive snare drum back beat on beats two and four. Melodies are often derived from older musical modes, including the Dorian and Mixolydian, harmonies range from the common triad to parallel fourths and fifths and dissonant harmonic progressions. Critics have stressed the eclecticism and stylistic diversity of rock, because of its complex history and tendency to borrow from other musical and cultural forms, it has been argued that it is impossible to bind rock music to a rigidly delineated musical definition. These themes were inherited from a variety of sources, including the Tin Pan Alley pop tradition, folk music and rhythm, as a result, it has been seen as articulating the concerns of this group in both style and lyrics. Christgau, writing in 1972, said in spite of some exceptions, rock and roll usually implies an identification of male sexuality, according to Simon Frith rock was something more than pop, something more than rock and roll. Rock musicians combined an emphasis on skill and technique with the concept of art as artistic expression, original. The foundations of music are in rock and roll, which originated in the United States during the late 1940s and early 1950s. Its immediate origins lay in a melding of various musical genres of the time, including rhythm and blues and gospel music, with country. In 1951, Cleveland, Ohio disc jockey Alan Freed began playing rhythm and blues music for a multi-racial audience, debate surrounds which record should be considered the first rock and roll record. Other artists with rock and roll hits included Chuck Berry, Bo Diddley, Fats Domino, Little Richard, Jerry Lee Lewis
9.
Heavy metal music
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Heavy metal is a genre of rock music that developed in the late 1960s and early 1970s, largely in the United Kingdom and the United States. Heavy metal lyrics and performance styles are associated with aggression. The first heavy metal such as Led Zeppelin, Black Sabbath. During the mid-1970s, Judas Priest helped spur the evolution by discarding much of its blues influence, Motörhead introduced a punk rock sensibility. Beginning in the late 1970s, bands in the new wave of British heavy metal such as Iron Maiden, before the end of the decade, heavy metal fans became known as metalheads or headbangers. During the 1980s, glam metal became popular with such as Mötley Crüe. Since the mid-1990s popular styles have further expanded the definition of the genre and these include groove metal and nu metal, the latter of which often incorporates elements of grunge and hip hop. Heavy metal is characterized by loud distorted guitars, emphatic rhythms, dense bass-and-drum sound. Metal subgenres variously emphasize, alter, or omit one or more of these attributes, the typical band lineup includes a drummer, a bassist, a rhythm guitarist, a lead guitarist, and a singer, who may or may not be an instrumentalist. Keyboard instruments are used to enhance the fullness of the sound. Deep Purples Jon Lord played an overdriven Hammond organ, in 1970, John Paul Jones used a Moog synthesizer on Led Zeppelin III, by the 1990s, in. almost every subgenre of heavy metal synthesizers were used. The electric guitar and the power that it projects through amplification has historically been the key element in heavy metal. The heavy metal guitar sound comes from a use of high volumes. Guitar solos are an element of the heavy metal code. That underscores the significance of the guitar to the genre, most heavy metal songs featur at least one guitar solo, which is a primary means through which the heavy metal performer expresses virtuosity. One exception is nu metal bands, which tend to omit guitar solos, with rhythm guitar parts, the heavy crunch sound in heavy metal. Palm muting the strings with the hand and using distortion. Palm muting creates a tighter, more sound and it emphasizes the low end
10.
Equalization (audio)
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Equalization is the process of adjusting the balance between frequency components within an electronic signal. The most well known use of equalization is in recording and reproduction but there are many other applications in electronics. The circuit or equipment used to achieve equalization is called an equalizer and these devices strengthen or weaken the energy of specific frequency bands or frequency ranges. In sound recording and reproduction, equalization is the commonly used to alter the frequency response of an audio system using linear filters. Most hi-fi equipment uses relatively simple filters to make bass and treble adjustments, graphic and parametric equalizers have much more flexibility in tailoring the frequency content of an audio signal. An equalizer is the circuit or equipment used to achieve equalization, since equalizers, adjust the amplitude of audio signals at particular frequencies, they are, in other words, frequency-specific volume knobs. The term EQ specifically refers to this variant of the term, stereos and basic guitar amplifiers typically have adjustable equalizers which boost or cut bass or treble frequencies. Mid- to high-priced guitar and bass amplifiers usually have more bands of frequency control, such as bass, mid-range and treble or bass, low-mid, high-mid, some amps have an additional knob for controlling very high frequencies. Broadcast and recording studios use sophisticated equalizers capable of more detailed adjustments. The most common equalizers in music production are parametric, semi-parametric, graphic, peak, graphic equalizers are often included in consumer audio equipment and software which plays music on home computers. Parametric equalizers require more expertise than graphic equalizers, and they can provide more specific compensation or alteration around a chosen frequency and this may be used in order to remove unwanted resonances or boost certain frequencies. An acoustic guitarist who finds that her instrument sounds too boomy may ask the engineer to reduce the low frequency range response. A guitarist who finds that the instrument sound in the PA has too much finger noise may ask the engineer to reduce the frequency range response. The concept of equalization was first applied in correcting the frequency response of telephone lines using passive networks, a plot of the systems net frequency response would be flat, as its response to all frequencies would literally be equal. Much later the concept was applied in engineering to adjust the frequency response in recording, reproduction. Audio amplifiers have long had filters or controls to modify their frequency response and these are most often in the form of variable bass and treble controls, and switches to apply low-cut or high-cut filters for elimination of low frequency rumble and high frequency hiss respectively. Graphic equalizers and other equipment developed for improving fidelity have since used by recording engineers to modify frequency responses for aesthetic reasons. Hence in the field of audio electronics the term equalization is now used to describe the application of such filters regardless of intent
11.
Electric upright bass
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The electric upright bass is an electronically amplified version of the double bass that has a minimal or skeleton body, which greatly reduces the size and weight of the instrument. The EUB retains enough of the features of the bass so that double bass players are comfortable performing on it. While the EUB retains some of the characteristics of the double bass. The first production electric upright basses were developed independently in the mid-1930s by Regal, Vega, however, in the 1930s and 1940s, neither the transducers and or amplification equipment which were then available could accurately reproduce the deep tones of the bass. This may have contributed to the lack of public interest in either the electric upright basses or the electric instruments that emerged in the 1930s. The scale length of EUBs varies, some scales are 42, similar to most double basses, the shorter scale can make it easier for bass guitarists to convert to the EUB. Some scales lie between two extremes, for example 34, like a long scale bass guitar. The fingerboard extends over two octaves and usually has side dots for the players reference, regardless of scale length, the strings are usually tuned to E1, A1, D2, G2 at the same pitch as the double bass or bass guitar. Double bass players use features of the instrument such as the neck heel, the rear of the body of an upright bass is usually braced against the hip with player standing or knee if sitting. Many EUBs therefore mirror these features in their design, there will often be a raised reference point about 1/3 down from the nut to the bridge at either the D or Eb position ) to represent the neck heel of the acoustic bass. Many EUBs have wooden or metal bars to brace the instrument against the musicians body, the wooden or metal brace bars help the EUB to rest against the players body in a position roughly similar to the way a double bass rests against the body. Most EUBs are fretless, but a number are fretted. Solid bodied EUBs produce very little sound without electronic amplification, hollow-bodied EUBs produce a quiet tone that is loud enough for individual practice. However, since hollow-bodied EUBs do not have a resonant cavity like a double bass. To amplify the EUB, the vibrations are sensed with a pickup. Early EUBs used magnetic pickups similar to those in electric guitars, many modern EUBs use piezoelectric pickups located in the bridge or a combination of pickup types. The signal from the pickup is usually preamplified and equalized with a preamplifier, for practice in a hotel room or apartment, an EUB can also be connected to headphones. Some EUBs have a resonant chamber, such as the Eminence EUB
12.
Viola
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The viola is a string instrument that is bowed or played with varying techniques. It is slightly larger than a violin and has a lower and deeper sound. Since the 18th century it has been the middle or alto voice of the family, between the violin and the cello. The strings from low to high are generally tuned to C3, G3, D4. In the past, the viola varied in size and style as did its names, the Italians often used the term, viola da braccio meaning literally, of the arm. Brazzo was another Italian word referring to the viola which the Germans adopted in the form, the French had their own names, Cinquiesme was a small viola, Haute Contre was a large viola and Taile meant Tenor. In the modern era, the French use the term Alto, the viola had enjoyed popularity in the heyday of five-part harmony up until the eighteenth century, taking three lines of the harmony and occasionally playing the melody line. Music that is written for the viola differs from that of most other instruments in that it uses the alto clef. Viola music switches to the treble clef when there are sections of music written in a higher register to make the notes easier to read. The viola often plays the voices in string quartets and symphonic writing. The viola occasionally plays a major, soloistic role in orchestral music, examples include Don Quixote by Richard Strauss and Harold en Italie by Hector Berlioz. In the earlier part of the 20th century, more composers began to write for the viola, encouraged by the emergence of specialized soloists such as Lionel Tertis and William Primrose. English composers Arthur Bliss, York Bowen, Benjamin Dale, Frank Bridge, Benjamin Britten and Ralph Vaughan Williams all wrote substantial chamber, many of these pieces were commissioned by, or written for Lionel Tertis. William Walton, Bohuslav Martinů, Toru Takemitsu, Tibor Serly, Alfred Schnittke, Paul Hindemith wrote a substantial amount of music for viola, including the concerto Der Schwanendreher. The concerti by Paul Hindemith, Béla Bartók, and William Walton are the big three of viola repertoire, the viola is similar in material and construction to the violin. A full-size violas body is between 25 mm and 100 mm longer than the body of a violin, with an average length of 41 cm. Small violas typically made for children typically start at 30 cm, for a child who needs a smaller size, a fractional-sized violin is often strung with the strings of a viola. Unlike the violin, the viola does not have a full size. The body of a viola would need to measure about 51 cm long to match the acoustics of a violin, there have been several experiments intended to increase the size of the viola, in the interest of improving the instruments sound
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