The original LP only had five selections, but the CD contains 13, with the added eight (from the same sessions) having first been released on the double-LP Circling In. Age 26 at the time, and on the brink of gaining major recognition in the jazz world, pianist Chick Corea is featured with a very strong trio that also includes bassist Miroslav Vitous and drummer Roy Haynes. The music includes 11 of Corea's originals, including "Matrix," "Windows," and "Samba Yantra," Thelonious Monk's "Pannonica" and the standard "My One and Only Love" and is essentially advanced hard bop with an open-minded attitude toward free jazz. Listen to how part of "Steps-What Was" has hints of Corea's future composition "Spain."