EternalJukebox

unfortunately at some point between November 2022 and today it stopped doing that, currently eternalbox.dev returns a gateway timeout. The source is still available at https://github.com/UnderMybrella/EternalJukebox, and it sounds like you can get it to run locally relatively easily (?)

Reminds me of a cool hackathon project I saw a few years ago, The Infinite Jukebox. It finds pairs of beats in a song that sound alike and during playback has a chance at each beat with of jumping to its paired match, creating a seamlessly looped version of the song with added novelty from verses and choruses having varying order and length. The original hack, done on song that works particularly well, is still up: http://infinitegangnamstyle.playlistmachinery.com The playback code often gets stuck looping the first beat when loaded for the first time or when the tab loses focus, which is fixed by reloading. It works quite well on songs with repetitive elements and instrumentation divided cleanly between beats. The original site for submitting arbitrary songs is broken, but a fork is hosted by someone else. Here with an instrumental piece