Free · Move three notes together

Chord Pitch Shift Lab for Kids

Send a whole three-note chord through real multi-tone pitch shifting.

  • Clear, kid-friendly steps
  • Private in your browser
  • No signup
Real AudioWorklet pitch shifting

Chord pitch shift lab

Shift three notes together to test Phaze's multi-tone sound processing.

+4 semitones1.260× pitch factor
1Local soundchord pattern
2Phaze workletFFT + peak shift + phase fix
3Changed pitchsame demo length
OriginalChanged
0.0 s+41.260×
3.5 s+41.260×

Move a major chord four steps higher.

Listen for this:A chord keeps its note spacing when every peak moves by the same factor.

Shape the pitch

Save the pitch idea

Keep a readable guide, spreadsheet timeline, or editable project.

Powered by Phaze phase vocoder AudioWorklet, an open-source library available under The Unlicense.

Three simple steps

How to use it

  1. Pick a ready pitch, then press Play demo sound. Nothing plays on load.
  2. Move the pitch step slider and listen for the change.
  3. Save a pitch guide, timeline sheet, or project you can reopen.

Private by default

Your words and choices stay in this browser tab. There are no accounts, uploads, ads, or trackers inside the tool. Close the tab and the working data is gone.