1. Add a song
Sign in, open Add song and choose an audio or video file (details). Jam uploads it and starts working on it straight away.
2. Wait for the parts
While the song is processed, the Studio shows Separating instruments with its progress. You can leave the page and come back; processing carries on without you (what happens while it processes).
3. Make room for your part
At the left of each row in the timeline, press Mute on the part you play, or Solo to hear one part on its own (the mixer).
4. Loop the hard bit
Drag across the timeline over the bars you want to work on. On a phone or tablet, long-press the timeline or use Create loop (looping).
5. Slow it down
Open Adjust tempo in the footer and pick a slower speed, such as 0.8×. The key stays the same (tempo). Raise it a step at a time as the passage gets comfortable.
6. Record yourself
Set the tempo back to 1×, put on headphones and press Record from Playhead (recording a take). Your take appears as a new row you can listen back to, mute or delete.