Transposition Tool
Choose your instrument, enter written notes, and transpose them to concert pitch or another instrument. The notes change; their sounding pitches stay the same.
Transpose from
Transpose to
Hear the concert pitch
The selected drone sound plays the selected note's actual sounding pitch. Concert A is 440 Hz.
Instrument samples: FluidR3 GM by Frank Wen and contributors, CC BY 3.0. Instrument timbres are held as steady synthesized tones. Sound creditsPitch and clef are different
Concert pitch is the sound you hear. An instrument in B-flat sounds B-flat when it reads C. Octave-transposing instruments are included: tenor saxophone sounds an octave lower than B-flat clarinet's same written note.
Treble, bass, alto, and tenor clefs change where notes sit on the staff; choosing a different clef does not change their sound. Viola normally uses alto clef. Bassoon normally uses bass clef and also uses tenor clef for higher passages.
Each note shows its own accidental; this tool does not apply a key signature. It preserves interval spelling, including double accidentals. Transposition does not guarantee a passage is within an instrument's playable range. Extreme notes are labelled instead of drawn with excessive ledger lines.