MIDI backing band
A whole band.
From one MIDI file.
Give any song a full backing band. Load a MIDI file, and Strofa plays every instrument through a built-in HD sound engine — mixed live on a console mixer, in your key and at your tempo.
Load and play
Fetch a MIDI file, or upload your own.
Open the mixer on any song and tap Fetch MIDI — Strofa searches and AI-matches a MIDI file for the song. Or upload your own .mid. Every instrument track from the file becomes a channel you can control.
Press play and the whole band comes in — bass, drums, keys, horns, strings — each on its own channel, in sync. Transpose and change tempo live without restarting.
- Auto-fetch or upload your own .mid
- One channel per instrument
- Live transpose (drums untouched)
- Live tempo, no restart
- Saved per song, synced with the band
Every control maps to standard MIDI, so your mix travels with the file.
Console mixer
Volume, pan, mute and solo — per instrument.
A full-screen console mixer gives every instrument a fader and a pan knob, plus mute and solo. Double-tap a control to reset it. The mixer reads each track's starting level and pan straight from the MIDI file, so the balance is right from the first play.
Everything is real MIDI: volume is CC 7, pan is CC 10. Your mix is saved per song and synced across your devices and the band.
Sound & sharing
Built-in HD sounds — or your own.
Strofa plays MIDI through a built-in General MIDI engine, with an optional HD sound bank for richer instruments. Prefer your own sounds? Share the backing as a .mid and open it anywhere.
Download an optional high-quality sound bank (MuseScore General) for richer pianos, strings and more — one tap in the mixer.
An optional master chain (EQ, compression, reverb, limiter) polishes the whole band, like a studio bus.
Export the backing — with your mix baked in — and open it in apps like bs-16i or GarageBand, or a DAW on your Mac, to use your own sounds.
Get started
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