Transposition
Transposition is the moving of a piece or section to another pitch, with all interval relationships kept. The music sounds higher or lower but stays the same in shape. It should be distinguished from transposed notation, in which only the way of writing is shifted.
- Principle
- shift all the notes by the same distance
- Stays intact
- the intervals of the melody
- Changes
- key and key signature
- Example
- C major → D major: everything a whole tone higher
Shifting all the notes the same distance
The intervals of a melody, its ups and downs, its shape, do not depend on the absolute pitch. You can therefore sing and play it higher or lower without its losing its character. That is transposition. In practice it means: every note is shifted by the same distance, in the example a whole tone upwards.
Melody in C major
A short melody in C major, made only of notes of the triad and one passing note.
The same course a whole tone higher: D major
Every note has risen by a whole tone. Because the intervals stay the same, D major needs two sharps: the F♯ (marked) corresponds to the E in C major.
The same melody a whole tone lower: B♭ major
A whole tone lower the melody lies in B♭ major with two flats.
In the glossary: Accidental · Key
Why you transpose
A song is brought into a register that suits the singer's voice. An accompanist adapts a piece to the line-up. A wind player reads a part written for an instrument of different tuning. In church music transposing chorales is part of the craft. Whole works therefore appear in editions for high and low voice. For guitarists the capo does the transposition: it shortens all the strings by the same number of semitones, the shapes stay the same.
Transposed notation
Something else is transposed notation. Here what you hear does not change, only how it is written down, because the instrument sounds differently from what it reads. A B♭ clarinet reads a C and plays a B♭.
| Instrument | Written note C | Sounds |
|---|---|---|
| Piano, flute | C | C |
| B♭ clarinet | C | B♭ (a whole tone lower) |
| B♭ trumpet | C | B♭ (a whole tone lower) |
| Horn in F | C | F (a fifth lower) |
Consequences for sound
In sound a transposition is not without consequences. On instruments with different registers the tone colour changes: open strings are no longer available, the positions shift, certain shapes become easier or harder. In unequal temperaments the character of the key itself also changes, because there not all keys sound the same. Within a piece the same principle is met as the sequence, in which a melodic figure is repeated on another degree.
Continue on Maikstrings
Related terms
KeyAccidentalCircle of fifthsIntervalSequenceScale
Editor: Maik Krohm · reviewed on 3 October 2026
← Back to the glossary