Anthony Braxton's 9 Compositions (Iridium) 2006 is a nine-CD-plus-one-DVD box set documenting what Time Out New York called "last Spring's epochal run" at New York's Iridium Jazz Club with his 12+1tet. Described by Braxton as "THE point of definition in my work thus far," these concerts featured the world premieres of Compositions 350 through 358, the final works in his Ghost Trance Music series, recorded over the course of this rare four-night stand on an American stage. Included with the music is a Braxton documentary, interspersed with live concert footage, and an extensive collection of essays, commentary and biographical information. This definitive set is being released in coordination with Braxton's return engagement at Iridium March 29th–April 1st, 2007.