Stems

Drop in a song and Stems gives you back separated parts, with vocals pulled apart from the instrumental.

Stems ST-02 is an AI stems splitter and vocal remover that runs on Facebook's open source Demucs v4 model.

It replaces the earlier approach built on Deezer's Spleeter model, so the separation comes from a newer engine than the one the first version used.

The tool also detects the key and BPM of each track you load.

That is handy if you are matching tracks for a DJ set, building a remix, or working out a song by ear.

Producers can grab an isolated vocal or backing track to sample or study, and music learners can mute one part and play along with the rest.

Stems is an audio separator with a narrow job, and it sticks to that job.

If you want clean stems plus the key and tempo, that covers most of what you need.