Michael Gordon’s 8 (for eight cellos) available now in digital audio or CD (score and parts available through Ricordi NY/Universal Music Group) is part of a series of works for multiples of a single instrument that began with Timber for six pieces of wood, and includes Rushes for seven bassoons and Amplified for four electric guitars. Each of these works is meant to induce a quasi-meditative, almost ecstatic state, in the listener as well as the performer…