Dave Holland's debut as a leader, Conference of the Birds, doesn't seem to get its proper due outside of avant-garde circles; perhaps, when discussing the greats, Holland's name simply doesn't spring to mind as immediately. Whatever the case, Conference of the Birds is one of the all-time avant-garde jazz classics, incorporating a wide spectrum of '60s innovations. Part of the reason it works so well is the one-time-only team-up of two avant-garde legends: the fiery, passionate Sam Rivers and the cerebral Anthony Braxton; they complement and contrast one another in energizing fashion throughout.