Slow Down a Song Without Changing the Pitch

Yes. It is free, has no time limit and needs no account, because the processing runs on your own device.

No. The file is decoded and played inside your browser and is never sent to GrooveSheet or anyone else.

Not unless you want it to. Keep the pitch is on by default. Turn it off for the turntable effect, where slower also means lower.

MP3, WAV, M4A, OGG and FLAC files that your browser can play. Download saves the song, or just the looped part, at the speed you set as a WAV file.

Yes. Upload the song to GrooveSheet and it transcribes the drums, bass, guitar or piano into sheet music and MIDI, with a player you can slow down. Every song starts with a free 30-second preview.

Fast fills, solos and riffs are much easier to hear and learn at 60% or 75% speed. Practise the part slowly until it is clean, then bring the speed back up a few percent at a time until you can play it with the record.

The page decodes your file in the browser and plays it through Signalsmith Stretch, an open source time and pitch engine. It stretches the sound in time without lowering it, so a song slowed to half speed is still in its original key.

Drag across the waveform to mark the bars you want, turn on the loop and play along until it sits. Turn on Speed up after each loop and every pass gets 5% faster, up to full speed, the way teachers build up a hard passage.

No. The free tools need no account and no download. They run in your browser, and nothing you play or drop in is uploaded.

Yes, in any current mobile browser. MIDI keyboards and pad controllers need Chrome, Edge or Opera, on a computer or an Android phone.

GrooveSheet turns any song into sheet music, MIDI and separated stems with AI: drums, bass, guitar, piano and more. Every song starts with a free 30-second preview.