For what it's worth there is a phenomenal site that applies algorithmic matching not to songs but to genera classification and the branching sub generas that new song signatures introduce. An amazing resource run as a solo sidehussle and looks like it is at risk of getting clipped due to hosting issues or something. There was Music DNA from Pandora and something similar on LastFM back a long time ago but this site is like the visual connectome of all human music produced through to 2023 and would be a loss for the World Wide Web if it stops.....
Every Noise At Once https://everynoise.com