And after listening to another couple of videos from the same channel and finding they are all just an endless string of variations on the exact same melody, with the same riffs and flourishes and bridges and things coming up over and over again, and the things that at first made me think "ooh, I like this" getting repetitive, I have to conclude the whole channel is just stochastic parrot junk. They've uploaded 94 half-hour-plus tracks since starting less than two months ago, and I can only assume it's all autogenerated variations on the one Sonic track. *sigh*