The free desktop app splits any song into vocals/drums/bass/guitar/piano and detects its tempo, key, and chords — a real breakdown of how the track was made, not a guess. This browser version can't run that (it needs real local compute), but its Any Sound row below lets you upload a clip and reverse or pitch-shift it right now, no install.

Hum or sing into your mic and it's pitch-tracked note-by-note, then replayed through any of 8 instrument voices — auto-tuned into a key if you can't quite hold the note, with Robotic or Muffled voice effects. Try it in the Voice row below — fully real, runs right in this tab.