I just recently re-acquired and finished listening to this album on MP3 after having it on vinyl during high school and college. Definitely one of Dukes finest works. (and he has done a lot. You can hear the quite heavy FZ influence hear with several members of the mothers aboard on this endevour.
Just some of the Musicians on this album included: Johnny "Guitar" Watson (vocals, guitar); Flora Purim (vocals); Daryl Stuermer, Lee Ritenour (guitars); Airto Moreira (berimbau, tambourine, percussion); John Wittenberg (violin); Bruce Fowler (trombone); Ruth Underwood (marimba, percussion, gong); Tom Fowler, Byron Miller (bass); Leon "Ndugu" Chancler (drums, gong, background vocals); and others still.
Here's a taste;
http://www.youtube.com/watch?v=WhktbcoFnTM