this post was submitted on 16 Oct 2023
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I mean, could one source the music from a streaming service or YouTube (provided that the user has a subscription)?
no, because they don't provide the stems, only the finished tracks
This is a prime use case for some quality open source software. Analyze audio, separate tracks, generate playing instructions for tracks.
what software can reliably generate stems from finished tracks? and will it still sound the same when you mix them back together?
I don't know if any exists. But it's theoretically possible and I think going from separated track to stems might be one of the easier parts (thanks Fourier!), though complicated by most notes appearing on each string in different places, but I bet there's an algorithm (again possible, not necessarily currently existing) for determining one of the easiest combinations to play rather than having to jump all over the fretboard.
As for sounding the same, you'd need to recreate the guitar effects used, and then it can be mixed back with the other tracks. Easier said than done, but I suspect this part does exist, though maybe not as open source.
Apologies if that wording should only be used for things one can download and use right now rather than a cool project idea I hope gets created. I might even give it a go, but I'm least confident about the track seperation part.