Yesterday's Universe continues to expand with astral speed. Since their first appearance on wax with 2000's Elle's Theme EP  followed shortly thereafter by their debut LP, Angles Without Edges  the group of esoteric jazz cats that make up Yesterdays New Quintet started a revolution of dusty, hazy, jazz instrumentals with a hip-hop sensibility. With mastermind producer Madlib leading the way, each member of the combo went on to record his own solo album or start his own offshoot project  all within the Yesterdays New Quintet family. With Yesterday's Universe, Madlib collects his favorite unreleased tracks from the Quintet's many incarnations.