This LP from ECM's early days finds Swedish pianist Bobo Stenson leading bassist Arild Andersen and drummer Jon Christensen in a program of uncompromising, collectively improvised post-bop. Andersen is prominent in the mix and plays just tons, all of it totally relevant to the music. Christensen provides structure, drawing on his breathtaking talent to contribute a dazzling range of color, a deft, flawless pulse, and fresh rhythmic ideas for the pianist and bassist. Stenson stakes out a middle ground, communicating closely with his partners and underpinning the group with subtle cues and harmonic shifts. Stenson's title track, a great post-bop, piano-bass-drum performance, goes for broke, but with discipline and a shared sense of purpose.