Transposition

Transposition

Transposing means shifting all notes up or down by the same number of semitones, preserving the shape of a melody or chord.

Why Transpose?

• Change the key of a song to suit a singer's range
• Move a chord up or down the neck of a guitar
• Shift a melody to fit a different instrument

The Formula

For each note in an array:

transposed[i] = notes[i] + steps

Example: C Major → D Major (+2 semitones)

C major:  [60, 62, 64, 65, 67, 69, 71, 72]
D major:  [62, 64, 66, 67, 69, 71, 73, 74]

Negative steps transpose down.

Your Task

Implement transpose(notes, steps) that shifts all notes by steps semitones.

Run your code to hear C major and F major (transposed up 5) back to back.