Support

Stable URL: https://midi-sink.vibetuned.com/support/ — referenced by the store listings; it will not change.

The apps

• iPad: midi-sink on the App Store (iPadOS and iOS 16 or later).
• Android: midi-sink on Google Play (Android 10 or later, OpenGL ES 3).
• macOS, Windows, Linux and the browser: the install page.

Where to ask

• Bugs and feature requests: github.com/vibetuned/midi-sink/issues. Search first — the issue tracker is also the beta wave’s confusion log.
• Email: info@vibetuned.com for anything that should not be public (a device you cannot name, a recording you would rather not post).
• Discussions, performances, “is this expected?”: open an issue with the question label, or send a link to a recording — the gallery grows from what people play.

What to include in a bug report

1. Platform and version. The version is in Settings → About on every platform (it comes from the release tag, e.g. 1.0.0). Say which app: macOS, Windows, Linux, iPad, Android, or the web canvas and its browser.
2. The instrument and how it is connected (USB, network session, Bluetooth), or “fingers/pencil” for the Play surface.
3. What you did, what you saw, what you expected. A short screen recording beats a paragraph.
4. For MIDI problems on the tablets: Settings → Evidence flushes the byte log (midi_log.csv) and the session log into the app’s documents folder. Attach them — they contain only MIDI messages and timestamps, no personal data — and the analysers in tools/ will tell us what went wrong in seconds. The MIDI implementation chart is the contract they are checked against.
5. For visual problems on desktop: run with --dev and use --field-dump if asked; the cross-backend field regression usually localises a rendering difference to one backend in one run.

Known limits, before you file

• Play mode exists on the eight keyed layouts and the theremin; the circle of fifths and the piano rolls are Marble-only by design.
• On the Galaxy Tab the S Pen’s palm rejection drops the fingers while the pen is near the glass, so the brass layouts’ valves and slide cannot be worked by a finger while the pen plays — a platform limit the iPad does not have (the instruments).
• The web canvas is Marble mode only — the instruments are overlays, a replay there is the picture alone — and needs WebGPU (Chrome, Edge, Safari 26, Firefox 141+) in a secure context — https:// or localhost.
• Many MPE synths ignore polyphonic key pressure (0xA0); the Play surface’s “pull back to stir” axis is primarily a visualizer dimension.
• Prints are what touches the water: the live ripple shimmer is not in them, on purpose.

The changelog lists what each release fixed; the design notes explain why things are the way they are.