I was just downloading the Rayman 3 soundtrack to send one or two titles to my girlfriend, because she never played any Rayman games besides the Rabbids...
I was looking specifically for the Hoodoo sorcerer theme. BUT...
The soundtrack is incomplete. Not only is the track, I was looking for, missing... but we have "FunkyBoard 2" without the first one? And if I'm not completely mistaken, I remember 3 rides on the disco track?

Now this isn't necessary, but SUPER appreciated, because I'm not sure, where I would buy the full soundtrack... :/

The full soundtrack isn't available for purchase anywhere, the GOG version is as far as I know, the only way to purchase the soundtrack. RayTunes has the complete soundtrack available for download, however.