Tap a string button to lock the tuner to that string (plays a reference tone; octave errors are corrected automatically — recommended for bass). Tap again to unlock. In-tune window is ±5 cents. Allow microphone access when asked; turn off any browser noise suppression for best tracking.
Drag the handles to isolate the passage you want — Transcribe directly and Separate both use only the selected region.
Solo instrument (you playing into the mic)? Use "Transcribe directly" — free, on-device, works on iPhone. "Separate full mix" isolates vocals/drums/bass/guitar/piano first (needs the Riffer worker + Replicate).
Record a riff, then loop it while you practise over it — the metronome can run at the same time. Slow it to 50–75% to learn fast passages; pitch stays true with the lock on (untick for tape-style pitch drop). Overdub stacks layers on top — the first recording sets the loop length, and overdubs play the loop at 100% speed while you record. With snap on, the loop length rounds to the metronome grid — set the metronome BPM first and record with it running for tightest results. Use headphones to avoid the mic picking up the loop.
Mic names appear after permission is granted. On iPhone Safari, a web app cannot choose the speaker, receiver, AirPods or Bluetooth output directly; select the route in iPhone Control Centre. The switch above only reduces route/volume changes while the mic is open. On supported desktop browsers you can pick the output device above.