Put the choir on the wall.
Mirror Tonotopia to the classroom screen and the whole choir can see itself. Each section shows up as a dot. When the altos sag, everyone sees it, including the altos.
This is the soundcheck. The app is quicker, does far more, and is free on iPhone and Android in November. Premium adds your session card, 5‑minute clips and premium themes. See the app
- What
- Four parts, one chord at a time
- From
- A choir: bass, tenor, alto, soprano
- Made
- Synthesized for this page. The altos come in flat on the last chord.
Your set list.
Tune the section you can see
Have the altos hold their note and look. In tune, their dot sits on its spoke. Under the pitch, it sits just off it.
Give them a pitch to live on
Run a drone and pick the reference pitch that matches your piano: 440, 442 or 432.
Replay the moment
Tap replay and the room sees the last 5 seconds again.
What the app brings for you.
Running a choir, a studio or a school program? Write to hello@tonotopia.com and tell us about your room.
Everything the app does, Free and Premium| Screen mirroring | Put the spiral on the classroom screen or the projector. |
|---|---|
| Reference pitch | 440, 442 or 432. |
| Drone | A steady pitch for the room to tune to. |
| Metronome | It can find the tempo you're already at. |
| Instant replayFree | One tap plays back the last 5 seconds. Sound too, if you turn it on. |
| Solfège gameFree | A warm-up the app calls and listens to. |
Get on the list.
Opening night is in November. Leave your email and we'll tell you the day it opens.
Admit one
- Show
- Tonotopia, opening night
- Where
- iPhone and Android
- When
- November 2026
- Seat
- Orchestra
Point your phone's camera here to open this page on it.
Keep this stub. You won't need it, but it's a nice stub.