On the commute today, I dusted off
Organix by The Roots. It's their first album, and perhaps the best example of their jazz-based sound heard on the infinitely-easier-to-find
Illadelph Halflife and
Do You Want More?!!!??!. Even if you're not a fan of hip-hop (but you are a fan of jazz), it's probably worth trying to find.
(To that end, where did Leonard parts one to five go?)