Transposing instrument
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A transposing instrument is a musical instrument for which music notation is not written at concert pitch. For example, playing a written middle C on a transposing instrument produces a pitch other th
Sheet music of the full score for Max Reger's Der 100. Psalm for choir, orchestra and organ. Staves for voices and for most concert-pitch instruments show a key signature of D major. Clarinets (2 Klarinetten in A) are shown with the appropriate transposition. French horns (4 Hörner in F) are shown transposed, but without a key signature, while trumpets (2 Trompeten in C) and timpani (3 Pauken in A C D) are written at concert pitch without key signatures.
Transposing examples
Double bass
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The double bass, also known as the upright bass, the acoustic bass, the bull fiddle, the bass fiddle, the string bass, the contrabass, or simply the bass, is the largest and lowest-pitched chordophone
Transposing instrument
…For some instruments, a written C sounds as a C but is in a different octave; these instruments are said to transpose "at the octave". Pitches on the double bass sound an octave lower than written, while those on the piccolo and celesta sound an octave higher, and those on the glockenspiel sound two octaves…
Side and front views of a modern double bass with a French-style bow
Jazz bassist Ron Carter at Altes Pfandhaus in Cologne
Ellen Andrea Wang performing at the Oslo Jazz Festival
Double bass is a standard instrument in bluegrass groups.