An amazing display of musicianship- McCoy plays some of the most intense music I have ever heard him play on this album, his set from the 1973 Montreux Jazz festival. He is supported by bassist Joony Booth (from Tony Williams' group), Alphonse Mouzon (slick player), and Azar Lawrence, who played on Miles' Live recording, "Dark Magus", about a year after this one. The shortest track is 8 minutes long, with two tracks (the Enlightenment Suite and Walk Spirit, Talk Spirit) being roughly 25 minutes apeice! Epic Tyner is all over this album; his trademark fourth stacks and blistering right hand runs are in every tune. The group interacts really well, and another nice aspect to this disc is that you get your money's worth- the concert is presented in it's entirety (about 70 minutes). This is a great album. You should also note that most of this concert is not relaxed- the players play hard for the whole album!