🎛️ StemFlipper

Upload a song → it is separated into stems (and the drum kit into its own pieces) → each stem becomes MIDI, one-shot samples, a multisampled instrument, bar-aligned loops and a synth patch → download a bundle any DAW or sampler can open.

Research/educational demo. Transcription is an editable starting point, not a finished score. The web editor lets you mix the original stems against the reconstruction and fix the notes before exporting.

Separation preset
fast = one pass (quickest). balanced = vocal model + stems + drum-kit split. best = same with the slower, more accurate stem model.