This bookset is a repack of the 40th Anniversary Super Deluxe Box package and comprises two CDs with original 94plus minutes of music plus six bonus tracks a third CD of a previously unissued performance at Tanglewood, August 1970, with Keith Jarrett, Chick Corea, Dave Holland, Jack DeJohnette, Airto Moreira and Gary Bartz DVD of a previously unissued performance in Copenhagen, November 1969, with Wayne Shorter, Corea, Holland and DeJohnette.brbr The book includes a 5,000word essay by journalistauthorproducermusician Greg Tate Producers’ notes by Michael Cuscuna and Richard Seidel plus dozens of rare, unpublished photographs and record label memos.