Through the act of improvisation, the jazz musician is continually composing. When it comes to formal composing of pieces for a jazz ensemble, the jazz musician must be able to not only write a good melody but also to provide a "springboard" for the ensemble to communicate and improvise. Pianist Glenn Zaleski's second recording for Sunnyside, Fellowship, reconvenes his trio, featuring bassist Dezron Douglas and drummer Craig Weinrib, to play a program of original compositions and a couple of insightfully arranged standards.