According to some the concert Henry Threadgill gave at North Sea a couple of years ago, was one of the most exciting and intriguing events the festival has presented to the audience in the last 30 years. This saxophonist, flute player, composer and bandleader is one the few real composers American avant-garde and free jazz have brought forth. Because Threadgill experiments with different instrumentations, he leads very divergent groups. His Sextet for example features a cello and the Very Very Circus orchestra uses two tubas. At North Sea 2005 Threadgill presents Zooid, a band with an interesting, original line up: alto sax, flute, acoustic guitar, oud, tuba, cello and drums.