Using StemFM

Adjusting Pitch and Key

Shift a track’s key, preserve it while changing speed, or match two tracks harmonically.

2 min read. Updated June 25, 2026

Pitch control lets you move a track’s key independently of its tempo. It is how StemFM keeps blends sounding musical — and it gives you control over the key yourself.

The StemFM player pitch and key control — The pitch control shifts key without changing tempo.

What you can do

Preserve the key so it stays put even as you change speed.
Match the key of the two tracks in a blend so they sit together harmonically.
Shift the key up or down to taste.