It's Back Bois! though it's more of my own implemenetation

Link: https://studio.code.org/projects/gamelab/Rng0BLCl1q33URRDKDVzZDvTOz9NRKlXZsFIDw33Cv4 None of the files are loaded in real time and get cached after first loads, so the wait can sometimes be a bit but you can load in at any part of the song