The Madlib Invazion Music Library Series. Entry #6: Gabriel Rowland (Los Yesterdays) brings out Eastside LA’s Chicano Soul and Funk Grooves. Orale, vato! This is the next up in a series of music library releases, with future volumes produced by DJ Muggs, Karriem Riggins and more. The Madlib Invazion Music Library Series was created by Madlib and Egon to give their creative friends a chance to stretch out and indulge in whatever type of music they wanted. This music was created for easy, one-stop clearance in film and television synchronization usage and for sampling. You can also enjoy these albums in the way that many do with the best of the best vintage library catalogs – listen, ponder, repeat.