‹ Transposer and full chart

A to concert pitch transposition chart

Down a minor third

From a A part to a concert-pitch part, every note moves 3 semitones down, and C major becomes A major.

A instrument → concert pitch: every note moves down 3 semitones.

becomes A major · 3 sharps

A3 B3 C♯4 D4 E4 F♯4 G♯4 A4

Spelled in A major.

Who reads which part

A: a clarinet.

Concert pitch: piano, guitar chords, flute, oboe, violin, trombone, tuba and most other instruments — anything that reads at concert pitch.

Every major key

AConcert pitchKey signature
C major (0)A major3♯
D♭ major (5♭)B♭ major2♭
D major (2♯)B major5♯
E♭ major (3♭)C major0
E major (4♯)D♭ major5♭
F major (1♭)D major2♯
F♯ major (6♯)E♭ major3♭
G major (1♯)E major4♯
A♭ major (4♭)F major1♭
A major (3♯)F♯ major6♯
B♭ major (2♭)G major1♯
B major (5♯)A♭ major4♭

Every minor key

AConcert pitchKey signature
A minor (0)F♯ minor3♯
B♭ minor (5♭)G minor2♭
B minor (2♯)G♯ minor5♯
C minor (3♭)A minor0
C♯ minor (4♯)B♭ minor5♭
D minor (1♭)B minor2♯
E♭ minor (6♭)C minor3♭
E minor (1♯)C♯ minor4♯
F minor (4♭)D minor1♭
F♯ minor (3♯)E♭ minor6♭
G minor (2♭)E minor1♯
G♯ minor (5♯)F minor4♭

Every note

Each note is moved by letter as well as by pitch, so a sharp stays a sharp and a flat a flat — B becomes G♯, not its enharmonic twin.

ACC♯D♭DE♭EFF♯G♭GA♭AB♭B
Concert pitchAA♯B♭BCC♯DD♯E♭EFF♯GG♯

Frequently asked questions

How do I transpose from A instrument to concert pitch?

Move every note down a minor third — 3 semitones, 2 letter names down. Change the key signature the same way: music in C major becomes A major.

What concert key is A music written in C major?

A major: A instrument sounds a minor third lower than the page.

Why does the chart choose D♭ major instead of C♯ major?

Where a key could be written two ways, the chart picks the one with fewer sharps or flats, the way band and orchestral parts are printed: D♭ major has five flats, C♯ major seven sharps. The notes are the same.

Other transpositions