Interesting! I just signed up for Chordify [0], which does extraction of chords from YouTube videos, and then plays them while you play along to either a grid of chords, or an animation showing the current chord and the next ones coming up. Has chord diagrams for Guitar, Ukulele, and Piano.
Really nice, frequently accurate (it's not perfect :-).
Is there a market for "mathematically superior" tools similar to this? I've been developing this sort of math for more than half my life, and would love to "productize" it. I just never thought there'd be a market...
Go for it. Let your users make your market, you should just make a great tool/service.
If you're better than the competition you should be profitable, and if your maths is better you're better than the competition.
I would pay for it. More importantly I would use it. Not everything has to have a price as long as everything has a value.
It's funny because I was trying to sing a melody into Musescore just the other day and had to apply a bit of Audacity and then remember theory from secondary school to make it work. My middle-age voice sounds different to a computer than to my ears. If you could make this easy and accurate you would do every amateur song-writer on this earth a huge favor, though maybe not every amateur listener :)
Chordify is great, but for some reason the chords are displayed late when running along side the youtube video. A simple timed delay would improve this frustrating quirk, but it hasn't been fixed in years.m
Really nice, frequently accurate (it's not perfect :-).
[0] https://chordify.net/