Mac Miller just released a ten song, self-produced, mixtape with his voice pitched. Features from Earl & Da$h. His website doesn't have a working download link but I have a working ZIP & stream for you guys below.
DOWNLOAD/STREAM
http://fashionably-early.com/2013/09/11/lupe-fiasco-peace-of-paper-cup-of-jayzus/
new song that is nearly seven minutes long from lupe. quite a few name drops in here including AZ, Drake