However the song starts, it ends up on stage.

We're building GigFrame quietly, with a handful of bands. It isn't open to everyone yet and we're not promising a date — but here's what it's for.

• Drop in an mp3. It hears the chords, turns them into notes — and you edit those notes yourself.
• Played it yourself, generated it, or read it off a sheet: the source doesn't matter.
• Rehearse together — everyone on their own screen, their own part, running off one shared spine.
• On stage, in sync with the phone in your pocket. Rehearsal and show alike.
• And it looks like something you'd want on a record sleeve.