Music Transposition Calculator
Transpose a note's frequency by a number of semitones.
Transposing shifts every note up or down by the same interval.
The math behind it
Multiply each frequency by 2^(semitones / 12). Positive shifts raise pitch, negative lowers it.
Worked example
Middle C (261.63 Hz) up 2 semitones gives D at about 293.66 Hz.
FAQ
Why transpose?
To match a singer's range or a different instrument's key.