Referring to the brass saxophone and the piano's ivory keys, Brazilian saxophonist based in New York City Ivo Perelman celebrates his 60th birthday with this 9-CD set of diverse approaches to sax & piano duos, performed with some of world's finest improvising pianists: Dave Burrell, Marilyn Crispell, Aaron Parks, Augusti Fernandez, Craig Taborn, Angelica Sanchez and Vijay Iyer.

One of two albums marking trumpeter Wadada Leo Smith's 80th birthday, and showing his creative and technical skills still in peak form, here in a trio for the first time uniting independent collaborators, pianist & keyboardist Vijay Iyer and drummer Jack DeJohnette, in compositions from each of the performers plus one collective improvisation.