Soundtrack, v1.01:

Times are for the 29.976fps DVD:

0:00:00 start MUSIC, Om Hraum Mitraya, p Deva Premal
0:17:50 chicano conference MUSIC, Hey Joe, Where You Gonna Go, p Sammy Lee And The Summits
0:20:47 chicano conference MUSIC, Cuando Sale La Luna, p Mariachi Tesoro de San Fernando
1:08:08 dance celebration MUSIC, Land Of A Thousand Dances, p Cannibal And The Headhunters
1:40:30 end MUSIC, Om Hraum Mitraya, p Deva Premal


End credits also mentions:

Hector, part 2, p The Village Callers
Poquito Soul, p One G Plus 3
Whittier Boulevard, p Thee Midniters
Poochum, aka Slow Shift p The Mixtures
The Return Of Farmer John, p The Salas Brothers


The director's commentary describes the final song as an Aztec poem, until I heard that I thought that it was eastern Buddhist.