Troubleshooting
Taps not registering, an unsteady reading, a silent metronome, the tuner hearing nothing — and what to do.
| Symptom | Likely cause & fix |
|---|---|
| Space does not tap | A text field — or a control you reached with Tab — has focus, so Space goes to it. Click somewhere neutral on the page and tap again. |
| Reading says Unsteady | Your taps are uneven — tap along for a few more bars, or set Tap smoothing to Average or Weighted in Settings. |
| BPM comes out double or half | Tap on the quarter note, not the subdivision; or use ½× / 2×. |
| Reading comes out double or half the song's tempo | Turn on BPM range lock in Settings with a sensible Min and Max — tapped tempos are folded into it. (Single missed or doubled taps are corrected automatically.) |
| Metronome makes no sound | Phones need a tap to unlock audio — press ▶ Metronome again. Check the ringer / silent switch and the media volume. |
| Metronome stopped by itself | You switched to the Tuner tab; the metronome stops so its clicks do not reach the mic. Switch back and start it again. |
| 6/8 sounds like 6/4 | Check the bottom number of the time signature — /8 clicks twice as fast as /4. Older saved songs were migrated automatically. |
| Custom click will not load | The message next to Upload says why: it must be audio the browser can play (WAV or MP3), at most 3 seconds and 4 MB. Trim it and upload again. |
| Custom click missing on another device | Custom sounds stay in the browser where you uploaded them — upload them again there. |
| Song tap loads the tempo but nothing plays | Count-in is Off — pick 1, 2 or 4 bars to start the metronome from a song. |
| Cannot edit or add songs | The setlist is locked (🔒). Press it to unlock; you are asked to confirm. |
| Imported JSON lost some fields | Imports are validated — invalid tempos or fields are cleaned up. Check the file and export a fresh copy from the working list. |
| Tuner shows no signal | Allow the microphone (mic icon in the address bar), pick the right input, and play one clear note without chords or heavy distortion. |
| "The microphone is in use by another app" | A DAW, a video call or another tab holds the input. Close it and press ▶ Start tuner again. |
| Everything reads a few cents flat or sharp | Check Reference A4 — a band tuning to 442 needs 442 here too. |
| Tuner needle flickers | Set Release to Mid or Slow, and move the phone away from fans and air conditioning. |
| Tuner reads the wrong string | Pick the instrument preset so the string strip shows the target, or use Chromatic and read the note name. |
| Setlist missing on another device | Both devices must be signed in to the same account and online; sync is per account. See Account sync. |
| Controls cut off on a narrow phone | Rows wrap on small screens; if something still looks clipped, reload once — after an update the first visit can serve the old layout. |
Still stuck?
For account, sign-in or sync questions see Your account and Account sync.
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