Rock music is a broad genre of popular music that originated as "rock and roll" in the United States in the early 1950s, developed into a range of different styles in the 1960s and particularly in the United Kingdom and in the United States. It has its roots in 1940s and 1950s rock and roll, a style which drew on the genres of blues and blues, from country music. Rock music drew on a number of other genres such as electric blues and folk, incorporated influences from jazz and other musical styles. Musically, rock has centered on the electric guitar as part of a rock group with electric bass and one or more singers. Rock is song-based music with a 4/4 time signature using a verse–chorus form, but the genre has become diverse. Like pop music, lyrics stress romantic love but address a wide variety of other themes that are social or political. By the late 1960s "classic rock" period, a number of distinct rock music subgenres had emerged, including hybrids like blues rock, folk rock, country rock, southern rock, raga rock, jazz-rock, many of which contributed to the development of psychedelic rock, influenced by the countercultural psychedelic and hippie scene.
New genres that emerged included progressive rock. In the second half of the 1970s, punk rock reacted by producing stripped-down, energetic social and political critiques. Punk was an influence in the 1980s on new wave, post-punk and alternative rock. From the 1990s alternative rock began to dominate rock music and break into the mainstream in the form of grunge and indie rock. Further fusion subgenres have since emerged, including pop punk, electronic rock, rap rock, rap metal, as well as conscious attempts to revisit rock's history, including the garage rock/post-punk and techno-pop revivals at the beginning of the 2000s. Rock music has embodied and served as the vehicle for cultural and social movements, leading to major subcultures including mods and rockers in the UK and the hippie counterculture that spread out from San Francisco in the US in the 1960s. 1970s punk culture spawned the goth and emo subcultures. Inheriting the folk tradition of the protest song, rock music has been associated with political activism as well as changes in social attitudes to race and drug use, is seen as an expression of youth revolt against adult consumerism and conformity.
The sound of rock is traditionally centered on the amplified electric guitar, which emerged in its modern form in the 1950s with the popularity of rock and roll. It was influenced by the sounds of electric blues guitarists; the sound of an electric guitar in rock music is supported by an electric bass guitar, which pioneered in jazz music in the same era, percussion produced from a drum kit that combines drums and cymbals. This trio of instruments has been complemented by the inclusion of other instruments keyboards such as the piano, the Hammond organ, the synthesizer; the basic rock instrumentation was derived from the basic blues band instrumentation. A group of musicians performing rock music is termed as a rock group. Furthermore, it consists of between three and five members. Classically, a rock band takes the form of a quartet whose members cover one or more roles, including vocalist, lead guitarist, rhythm guitarist, bass guitarist and keyboard player or other instrumentalist. 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 originate from older musical modes such as the Dorian and Mixolydian, as well as major and minor modes. Harmonies range from the common triad to parallel perfect fourths and fifths and dissonant harmonic progressions. Since the late 1950s and from the mid 1960s onwards, rock music used the verse-chorus structure derived from blues and folk music, but there has been considerable variation from this model. Critics have stressed the eclecticism and stylistic diversity of rock; because of its complex history and its 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." Unlike many earlier styles of popular music, rock lyrics have dealt with a wide range of themes, including romantic love, rebellion against "The Establishment", social concerns, life styles. These themes were inherited from a variety of sources such as the Tin Pan Alley pop tradition, folk music, rhythm and blues.
Music journalist Robert Christgau characterizes rock lyrics as a "cool medium" with simple diction and repeated refrains, asserts that rock's primary "function" "pertains to music, or, more noise." The predominance of white and middle class musicians in rock music has been noted, rock has been seen as an appropriation of black musical forms for a young and male audience. As a result, it has been seen to articulate the concerns of this group in both style and lyrics. Christgau, writing in 1972, said in spite of some exceptions, "rock and roll implies an identification of male sexuality and aggression". Since the term "rock" started being used in preference to "rock and roll" from the late-1960s, it has been contrasted with pop music, with which it has shared many characteristics, but from wh
The ARIA Charts are the main Australian music sales charts, issued weekly by the Australian Recording Industry Association. The charts are a record of the highest selling albums in various genres in Australia. ARIA became the official Australian music chart in June 1988, succeeding the Kent Music Report, Australia's national charts since 1974; the Go-Set charts were Australia's first national singles and albums charts published from 5 October 1966 until 24 August 1974. Succeeding Go-Set, the Kent Music Report began issuing the national top 100 charts in Australia from May 1974; the compiler, David Kent published Australia's national charts from 1940–1974 in a retrospective fashion using state based data. In mid 1983, the Australian Recording Industry Association commenced licensing the Kent Music Report chart; the first printed national top 50 chart available in record stores, branded the Countdown chart, was dated the week ending 10 July 1983. ARIA began compiling its own charts in-house from the chart survey dated 13 June 1988, corresponding with the printed top 50 chart dated week ending 26 June 1988.
Various artists compilation albums were included in the albums chart, as they had been on the Kent Report chart, until 2 July 1989, when a separate Compilations chart was created. The ARIA Report, detailing the top 100 singles and albums charts, was first available via subscription in January 1990; the printed top 50 chart ceased publication in June 1998, but resumed publication in the year. The printed top 50 chart again ceased publication at the end of 2000; the ARIA charts are based on data collected from digital retailers in Australia. Data of physical sales come from retailers such as Sanity and JB Hi-Fi, while data of digital sales come from online retailers such as iTunes. Since 17 February 1997, all physical sales data contributing towards the chart has been recorded electronically at point of sale. In March 1991, "Do the Bartman" by The Simpsons was the first single to reach #1 in Australia, not available on 7 inch vinyl, but cassingle only. Starting from 8 October 2006, due to low physical single sales at the time, the ARIA singles chart included online data as well as physical sales.
In 2006, it was announced that the Brazin retailing group, comprising major retailers HMV, Sanity and Virgin music/DVD stores would no longer contribute sales data to the ARIA charts. However, after a five-month absence, Brazin re-commenced contributing sales figures to the ARIA Charts on 26 November 2006; the ARIA website publishes the top 50 singles and albums charts, top 40 digital tracks chart, top 20 dance singles chart. The ARIA Report is available via paid e-mail subscription each week; these reports are uploaded to the Pandora Archive periodically. On 5 February 2006, the ARIA Chart Show was a radio program launched on the Nova network and broadcast throughout Australia, playing the official ARIA top 50 singles; the live music program was hosted by Jabba each Sunday afternoon at 3:00pm. From 1 June 2013 to 3 September 2016, the Take 40 Australia radio program broadcast the official ARIA top 40 singles on Saturday afternoons from 2:00 pm to 6:00 pm, on each state's Hit Network-owned radio station.
The show was aired before the top 50 chart, dated for the following Monday, is published on the ARIA website at 6:00 pm. The charts were published online at 6:00 pm each Sunday. ARIA Top 100 Singles Chart ARIA Top 100 Albums Chart ARIA Top 100 Physical Albums Chart ARIA Top 50 Digital Tracks Chart ARIA Top 50 Digital Albums Chart ARIA Top 50 Streaming Tracks Chart ARIA Top 50 Club Tracks Chart ARIA Top 50 Catalogue Albums Chart ARIA Top 40 Urban Singles Chart ARIA Top 40 Urban Albums Chart ARIA Top 40 Country Albums Chart ARIA Top 40 Music DVDs Chart ARIA Top 25 Dance Singles Chart ARIA Top 25 Dance Albums Chart ARIA Top 20 Australian Artist Singles Chart ARIA Top 20 Australian Artist Albums Chart ARIA Top 20 Compilation Albums Chart ARIA Top 20 Jazz & Blues Albums Chart ARIA Top 20 Classical/Crossover Albums Chart ARIA Top 10 Core Classical Albums Chart ARIA Top 20 Hitseekers Singles Chart ARIA Top 20 Hitseekers Albums Chart Yearly Top 100 End of Year charts profiling the year in music End of Decade Top 100 charts profiling the decade in music Pre-2000: 2000 to present: 2006 to present: Pre-2000: 2000 to present: 2016 to present: Music of Australia List of Australian chart achievements and milestones Official website Top 50 chart archives from June 1988 at australian-charts.com Top 100 chart archives from January 2001 at Pandora Archive
Collective Soul (1995 album)
Collective Soul is the second studio album by Collective Soul. It became the band's highest selling album to date, going Triple-Platinum, spent 76 weeks on the Billboard 200 charts; the singles "December," "The World I Know" and "Where the River Flows" all reached #1 on the Mainstream Rock Tracks chart, while the first two singles became major pop hits. Frontman Ed Roland has considered Collective Soul the band's true debut album. It's like comparing one band to another band; this record is our first record, flat out." Amidst the surprise success of "Shine," taken from the Hints and Things Left Unsaid demo recordings, Collective Soul insisted on remixing the songs for a higher quality re-release. However, they were told the time required; the band were instead convinced they could begin recording a new, sophomore effort after finishing their tour schedule. The recording and mixing of Collective Soul took five weeks, a strained scheduled due to added concerts in late December 1994 which finished on New Year's Eve.
Ed Roland recorded fifteen of them in the studio. Four more were written in the studio which allowed the band to disregard eight of the previous tracks. Lead guitarist Ross Childress helped write "Simple" and "The World I Know", encouraged by Roland who wanted a band effort in the studio. By the time "Smashing Young Man" was being recorded, drummer Shane Evans was on vacation and unreachable; this forced the band to loop a drum sample of his from a DAT before hiring a second drummer to improve it. After many takes, Roland was disappointed with the final version of "Bleed" but liked the song too much to remove it from the record. Mixing was completed in the first week of February 1995; the band went to New York City for a week of publicity and photo sessions. Collective Soul opened for Van Halen during their Balance Tour which began on March 11, 1995 in Pensacola and ended in May 1995; the band performed at festivals in the United States before taking a break and continuing with their own solo tour including club shows.
Seven songs from the new album were performed on tour with "Shine" being the only played track from their previous release. A new unnamed song was performed in concert; the band's self-titled release included five singles: "December," "The World I Know," "Where the River Flows," "Gel" and "Smashing Young Man." The three former tracks reached #1 on the Mainstream Rock Tracks charts and the first two became major pop hits. Music videos were filmed for some singles and aired on MTV. In a feat similar to its predecessor, Collective Soul received positive reviews with praise handed to its strong melodies but indifference for an alleged lack of musical innovation. Paul Evans of Rolling Stone gave the album 3 out of 5 stars, he noted "Roland's flair for McCartneyesque melodic detail" and summed up with "the band proves it has the goods to continue to shine on brightly." Allmusic's Tom Demalon "Gel" as AMG Track Picks. He, commended the strong melodies and stated "While not ground-breaking, Collective Soul delivers the goods with a dozen, hook-laden songs for which they were awarded another multi-platinum outing."
All songs written except where noted. Collective Soul: Ed Roland - lead vocals, producer Ross Childress - lead guitar, background vocals Dean Roland - rhythm guitar Will Turpin - bass, background vocals Shane Evans - drumsAdditional musicians: Jackie Johnson - background vocals Bertram Brown - background vocals Becky Russell - background vocals Steven Sigurdson - cello David Chappell - viola Geremy Miller - violin John DiPuccio - violin Janet Clippard - contrabass Luis Enrique - percussionProduction: Matt Serletic - producer Greg Archilla - engineer Malcolm Springer - second engineer Bjorn Thorsrud - second engineer Tom Gordon - assistant engineer Bob Clearmountain - mixing Billboard Billboard
A phonograph record is an analog sound storage medium in the form of a flat disc with an inscribed, modulated spiral groove. The groove starts near the periphery and ends near the center of the disc. At first, the discs were made from shellac. In recent decades, records have sometimes been called vinyl records, or vinyl; the phonograph disc record was the primary medium used for music reproduction throughout the 20th century. It had co-existed with the phonograph cylinder from the late 1880s and had superseded it by around 1912. Records retained the largest market share when new formats such as the compact cassette were mass-marketed. By the 1980s, digital media, in the form of the compact disc, had gained a larger market share, the vinyl record left the mainstream in 1991. Since the 1990s, records continue to be manufactured and sold on a smaller scale, are used by disc jockeys and released by artists in dance music genres, listened to by a growing niche market of audiophiles; the phonograph record has made a notable niche resurgence in the early 21st century – 9.2 million records were sold in the U.
S. in 2014, a 260% increase since 2009. In the UK sales have increased five-fold from 2009 to 2014; as of 2017, 48 record pressing facilities remain worldwide, 18 in the United States and 30 in other countries. The increased popularity of vinyl has led to the investment in new and modern record-pressing machines. Only two producers of lacquers remain: Apollo Masters in California, MDC in Japan. Phonograph records are described by their diameter in inches, the rotational speed in revolutions per minute at which they are played, their time capacity, determined by their diameter and speed. Vinyl records may be scratched or warped if stored incorrectly but if they are not exposed to high heat, carelessly handled or broken, a vinyl record has the potential to last for centuries; the large cover are valued by collectors and artists for the space given for visual expression when it comes to the long play vinyl LP. The phonautograph, patented by Léon Scott in 1857, used a vibrating diaphragm and stylus to graphically record sound waves as tracings on sheets of paper, purely for visual analysis and without any intent of playing them back.
In the 2000s, these tracings were first scanned by audio engineers and digitally converted into audible sound. Phonautograms of singing and speech made by Scott in 1860 were played back as sound for the first time in 2008. Along with a tuning fork tone and unintelligible snippets recorded as early as 1857, these are the earliest known recordings of sound. In 1877, Thomas Edison invented the phonograph. Unlike the phonautograph, it could both record and reproduce sound. Despite the similarity of name, there is no documentary evidence that Edison's phonograph was based on Scott's phonautograph. Edison first tried recording sound on a wax-impregnated paper tape, with the idea of creating a "telephone repeater" analogous to the telegraph repeater he had been working on. Although the visible results made him confident that sound could be physically recorded and reproduced, his notes do not indicate that he reproduced sound before his first experiment in which he used tinfoil as a recording medium several months later.
The tinfoil was wrapped around a grooved metal cylinder and a sound-vibrated stylus indented the tinfoil while the cylinder was rotated. The recording could be played back immediately; the Scientific American article that introduced the tinfoil phonograph to the public mentioned Marey and Barlow as well as Scott as creators of devices for recording but not reproducing sound. Edison invented variations of the phonograph that used tape and disc formats. Numerous applications for the phonograph were envisioned, but although it enjoyed a brief vogue as a startling novelty at public demonstrations, the tinfoil phonograph proved too crude to be put to any practical use. A decade Edison developed a improved phonograph that used a hollow wax cylinder instead of a foil sheet; this proved to be both a better-sounding and far more useful and durable device. The wax phonograph cylinder created the recorded sound market at the end of the 1880s and dominated it through the early years of the 20th century. Lateral-cut disc records were developed in the United States by Emile Berliner, who named his system the "gramophone", distinguishing it from Edison's wax cylinder "phonograph" and American Graphophone's wax cylinder "graphophone".
Berliner's earliest discs, first marketed in 1889, only in Europe, were 12.5 cm in diameter, were played with a small hand-propelled machine. Both the records and the machine were adequate only for use as a toy or curiosity, due to the limited sound quality. In the United States in 1894, under the Berliner Gramophone trademark, Berliner started marketing records of 7 inches diameter with somewhat more substantial entertainment value, along with somewhat more substantial gramophones to play them. Berliner's records had poor sound quality compared to wax cylinders, but his manufacturing associate Eldridge R. Johnson improved it. Abandoning Berliner's "Gramophone" tradem
Social media are interactive computer-mediated technologies that facilitate the creation and sharing of information, career interests and other forms of expression via virtual communities and networks. The variety of stand-alone and built-in social media services available introduces challenges of definition. User-generated content, such as text posts or comments, digital photos or videos, data generated through all online interactions, is the lifeblood of social media. Users create service-specific profiles for the website or app that are designed and maintained by the social media organization. Social media facilitate the development of online social networks by connecting a user's profile with those of other individuals or groups. Users access social media services via web-based technologies on desktops and laptops, or download services that offer social media functionality to their mobile devices; as users engage with these electronic services, they create interactive platforms through which individuals and organizations can share, co-create and modify user-generated content or pre-made content posted online.
Networks formed through social media change the way groups of people communicate. They "introduce substantial and pervasive changes to communication between organizations and individuals." These changes are the focus of the emerging fields of technoself studies. Social media differ from paper-based media and traditional electronic media such as TV broadcasting in many ways, including quality, frequency, usability and performance. Social media outlets operate in a dialogic transmission system; this is in contrast to traditional media which operates under a monologic transmission model, such as a newspaper, delivered to many subscribers, or a radio station which broadcasts the same programs to an entire city. Some of the most popular social media websites, with over 100 million registered users, include Facebook, YouTube, WeChat, Instagram, QQ, QZone, Twitter, Telegram, Baidu Tieba, LinkedIn, LINE, Pinterest, VK. Observers have noted a range of negative impacts of social media use. Social media can help to improve an individual's sense of connectedness with real or online communities, can be an effective communication tool for corporations, nonprofit organizations, advocacy groups, political parties, governments.
Social media may have been influenced by the 1840s introduction of the telegraph in the US, which connected the country. The PLATO system launched in 1960, developed at the University of Illinois and subsequently commercially marketed by Control Data Corporation, offered early forms of social media with 1973-era innovations such as Notes, PLATO's message-forum application. ARPANET, which first came online in 1967, had by the late 1970s developed a rich cultural exchange of non-government/business ideas and communication, as evidenced by the network etiquette described in a 1982 handbook on computing at MIT's Artificial Intelligence Laboratory. ARPANET became the foundation of Usenet, conceived by Tom Truscott and Jim Ellis in 1979 at the University of North Carolina at Chapel Hill and Duke University, established in 1980. A precursor of the electronic bulletin board system, known as Community Memory, had appeared by 1973. True electronic bulletin board systems arrived with the Computer Bulletin Board System in Chicago, which first came online on 16 February 1978.
Before long, most major cities had more than one BBS running on TRS-80, Apple II, Atari, IBM PC, Commodore 64, similar personal computers. The IBM PC was introduced in 1981, subsequent models of both Mac computers and PCs were used throughout the 1980s. Multiple modems, followed by specialized telecommunication hardware, allowed many users to be online simultaneously. Compuserve, Prodigy and AOL were three of the largest BBS companies and were the first to migrate to the Internet in the 1990s. Between the mid-1980s and the mid-1990s, BBSes numbered in the tens of thousands in North America alone. Message forums arose with the BBS phenomenon throughout early 1990s; when the Internet proliferated in the mid-1990s, message forums migrated online, becoming Internet forums due to cheaper per-person access as well as the ability to handle far more people than telco modem banks. GeoCities was one of the Internet's earliest social networking websites, appearing in November 1994, followed by Classmates in December 1995 and Six Degrees in May 1997.
According to CBS news, Six Degrees is "widely considered to be the first social networking site", as it included "profiles, friends lists and school affiliations" that could be used by registered users. Open Diary was launched in October 1998. 360° in March 2005.
RPM was a Canadian music industry publication that featured song and album charts for Canada. The publication was founded by Walt Grealis in February 1964, supported through its existence by record label owner Stan Klees. RPM ceased publication in November 2000. RPM stood for "Records, Music"; the magazine was reported to have variations in its title over the years such as RPM Weekly and RPM Magazine. RPM maintained several format charts, including Top Singles, Adult Contemporary, Urban, Rock/Alternative and Country Tracks for country music. On 21 March 1966, RPM expanded its Top Singles chart from 40 positions to 100. On December 6, 1980 the main chart became a Top 50 chart and remained this way until August 4, 1984 whereupon it returned to being a Top 100 Singles chart. For the first several weeks of its existence, the magazine did not compile a national chart, but printed the current airplay lists of several major market Top 40 stations. A national chart was introduced beginning with the June 22, 1964 issue, with its first-ever national #1 single being "Chapel of Love" by The Dixie Cups.
Prior to the introduction of RPM's national chart, the CHUM Chart from Toronto radio station CHUM was considered the de facto national chart. The final #1 single in the magazine was "Music" by Madonna; the modern Juno Awards had their origins in an annual survey conducted by RPM since its founding year. Readers of the magazine were invited to mail in survey ballots to indicate their choices under various categories of people or companies; the RPM Awards poll was transformed into a formal awards ceremony, The Gold Leaf Awards in 1970. These became the Juno Awards in following years; the RPM Awards for 1964 were announced in the 28 December 1964 issue: Top male vocalist: Terry Black Top female singer: Shirley Matthews Most promising male vocalist: Jack London Most promising female vocalist: Linda Layne Top vocal instrumental group: The Esquires Top female vocal group: Girlfriends Top instrumental group: Wes Dakus & The Rebels Top folk group: The Courriers Top country male singer: Gary Buck Top country female singer: Pat Hervey Industry man of the year: Johnny Murphy of Cashbox Canada Top record company: Capitol Records of Canada Top Canadian Content record company: Capitol Records of Canada Top national record promoter: Paul White, Capitol Records of Canada Top regional record promoter: Ed Lawson, Quality Records Top album of the year: That Girl by Phyllis MarshallA column on page 6 of that issue noted that the actual vote winner for Top Canadian Content record company was disqualified due to a conflict of interest involving an employee of that company, working for RPM.
Therefore, runner-up Capitol Records was declared the category's winner. The Annual RPM Awards for 1965 were announced in the 17 January 1966 issue, with more country music categories than the previous year: Top male vocalist: Bobby Curtola Top female singer: Catherine McKinnon Most promising male vocalist: Barry Allen Most promising female vocalist: Debbie Lori Kaye Top vocal/instrumental group: The Guess Who Top female vocal group: Girlfriends Top instrumental group: Wes Dakus & The Rebels Top folk group: Malka and Joso Top folk singer: Gordon Lightfoot Best produced single: "My Girl Sloopy", Little Caesar and the Consuls Best produced album: Voice of an Angel by Catherine McKinnon Top country male singer: Gary Buck Top country female singer: Dianne Leigh Most promising country male singer: Angus Walker Most promising country female singer: Sharon Strong Top country instrumental vocal group: Rhythm Pals Top country instrumentalist: Roy Penney Top country radio personality: Al Fisher, CFGM Toronto Top Canadian disc jockey: Chuck Benson, CKYL Peace River Top record company: Capitol Records of Canada Top Canadian Content record company: Capitol Records of Canada Top national record promoter: Paul White, Capitol Records of Canada Top regional record promoter: Charlie Camilleri, Quality Records The winners were: Top male vocalist: Barry Allen Top female singer: Catherine McKinnon Most promising male vocalist: Jimmy Dybold Most promising female vocalist: Lynda Lane Top vocal/instrumental group: Staccatos Top female vocal group: Allan Sisters Top instrumental group: Wes Dakus & The Rebels Top folk group: 3's a Crowd Top folk singer: Gordon Lightfoot Best produced single: "Let's Run Away", Staccatos Top country male singer: Gary Buck Top country female singer: Dianne Leigh Most promising country male singer: Johnny Burke Most promising country female singer: Debbie Lori Kaye Top country instrumental vocal group: Mercey Brothers Top country instrumentalist: Roy Penney Top country radio personality: Ted Daigle Top country radio station: CFGM Top record company: Capitol Records of Canada Top Canadian Content record company: Red Leaf Records Top national record promoter: Paul White, Capitol Records of Canada Top regional record promoter: Al Nair Top Canadian music industry man of the year: Stan Klees List of number-one singles in Canada List of RPM number-one alternative rock singles List of RPM number-one country singles List of RPM number-one dance singles RPM archive charts RPM Library and Archives Canada: "The RPM Story" The Canadian Encyclopedia: RPM Charts archive from 1964 to 1999 on worldcharts.co.uk Megan Thow.
"Critical Miss". Ryerson Review of Journalism. Archived from the original on 27 September 2007. Retrieved 15 September 2007
A keyboard instrument is a musical instrument played using a keyboard, a row of levers which are pressed by the fingers. The most common of these are the piano and various electronic keyboards, including synthesizers and digital pianos. Other keyboard instruments include celestas, which are struck idiophones operated by a keyboard, carillons, which are housed in bell towers or belfries of churches or municipal buildings. Today, the term keyboard refers to keyboard-style synthesizers. Under the fingers of a sensitive performer, the keyboard may be used to control dynamics, shading and other elements of expression—depending on the design and inherent capabilities of the instrument. Another important use of the word keyboard is in historical musicology, where it means an instrument whose identity cannot be established. In the 18th century, the harpsichord, the clavichord, the early piano were in competition, the same piece might be played on more than one. Hence, in a phrase such as "Mozart excelled as a keyboard player," the word keyboard is all-inclusive.
The earliest known keyboard instrument was the Ancient Greek hydraulis, a type of pipe organ, invented in the third century BC. The keys were balanced and could be played with a light touch, as is clear from the reference in a Latin poem by Claudian, who says magna levi detrudens murmura tactu... intent, “let him thunder forth as he presses out mighty roarings with a light touch”. From its invention until the fourteenth century, the organ remained the only keyboard instrument; the organ did not feature a keyboard at all, but rather buttons or large levers operated by a whole hand. Every keyboard until the fifteenth century had seven naturals to each octave; the clavichord and the harpsichord appeared during the fourteenth century—the clavichord being earlier. The harpsichord and clavichord were both common until widespread adoption of the piano in the eighteenth century, after which their popularity decreased; the piano was revolutionary because a pianist could vary the volume of the sound by varying the vigor with which each key was struck.
The piano's full name is gravicèmbalo con piano e forte meaning harpsichord with soft and loud but can be shortened to piano-forte, which means soft-loud in Italian. In its current form, the piano is a product of the late nineteenth century, is far removed in both sound and appearance from the "pianos" known to Mozart and Beethoven. In fact, the modern piano is different from the 19th-century pianos used by Liszt and Brahms. See Piano history and musical performance. Keyboard instruments were further developed in the early twentieth century. Early electromechanical instruments, such as the Ondes Martenot, appeared early in the century; this was a important contribution to the keyboard's history. Much effort has gone into creating an instrument that sounds like the piano but lacks its size and weight; the electric piano and electronic piano were early efforts that, while useful instruments in their own right, did not convincingly reproduce the timbre of the piano. Electric and electronic organs were developed during the same period.
More recent electronic keyboard designs strive to emulate the sound of specific make and model pianos using digital samples and computer models. Each acoustic keyboard contains 88 keys. Weighted keys, found on electronic keyboards, are designed to simulate the resistance of a key on an acoustic keyboard, via pressurization. There are 4 types of weighted keys. Keybeds, or non-weighted keys place the weights within the base of the keyboard; the second type, Semi-weighted uses springs, the third type is hammer keys. Most electronic keyboards use the fourth type: graded simulate keys. Weighted keys are made of wood, or metal/wood substitute. Enharmonic keyboard Musical instrument Orchestrina di camera Piano Symphony Young, Percy M. Keyboard Musicians of the World. London: Abelard-Schuman, 1967. N. B.: Concerns celebrated keyboard players and the various such instruments used over the centuries. ISBN 0-200-71497-X The general keyboard in the age of MIDI Renaissance Keyboards on the Heilbrunn Timeline of Art History, The Metropolitan Museum of Art The Pianofortes of Bartolomeo Cristofori on the Heilbrunn Timeline of Art History, The Metropolitan Museum of Art