Hardest part of searching for the Furi soundtrack is that each song was handcrafted to be made of parts which could cleanly loop/transition based on boss progress, so simply yootoobing the OST is likely to bring up 1 or 2 oversimplified "flat" versions of a given song.
Having dug into the full version of Danger's 6:24 I am NOT going to settle for a flattened 4 minutes per track. Gimmie 10-30 minutes of getting more aggressive/fucked up/despairing to sell the boss fight it's backing. I will never play this game but it earned these pieces and I intend to enjoy them to the fullest.