Neil Cicierega Archive is an illegal re-upload source for mashups by Neil Cicierega. Every album is free on Neil Cicierega's own website, and local files are very easy to use. While it is claimed as an "archive", these albums are in no danger of disappearing.

https://support.spotify.com/us/article/local-files/

http://www.neilcic.com/mouthsounds
http://www.neilcic.com/mouthsilence
http://www.neilcic.com/mouthmoods
http://www.neilcic.com/mouthdreams Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.