Art Ensemble of Chicago- BAP-TIZUM (1972)

The Art Ensemble of Chicago is a jazz collective from, well, Chicago that rose to prominence at the latter half of the free jazz movement during the late 60s and early 70s.  Gaining prominence with their soundtrack for the French film Les Stances a Sophie, the ensemble went on to release BAP-TIZUM, a live recording from the Ann Arbor Blues and Jazz Festival in 1972.   While the group would go on to release many more albums over the next few decades, and though they are still active to this day, BAP-TIZUM still stands as one of their crowning achievements:  a vibrant recording that still sounds fresh and inventive today. 

Psalters - The Divine Liturgy of the Wretched Exiles (2006)

The Divine Liturgy of the Wretched Exiles from Pennsylvanian tribal/anarcho-punk band Psalters starts off with powerful droning hums, then breaks open into beautiful chanting of "Agios O Theos; Agios Eschiros." The chanting itself is wonderful, all of their voices are very strong and emotional, it's actually quite hard to describe. It's all very hypnotizing. A few track later is "Rich Man and Afghanistan," who's beginning consists of manic and splendid screaming, with a chant between each line. It breaks down into tribal drumming with other instruments thrown in.