Quartet for 2 Vibraphones and 2 Pianos

(Boosey & Hawkes Chamber Music). "Quartet, when mentioned in the context of concert music, is generally assumed to mean string quartet. In my case, the quartet that has played a central role in many of my pieces (besides the string quartet) is that of two pianos and two percussion instruments . The piece is one of the more complex I have composed. It frequently changes key and often breaks off continuity to pause or take up new material. Though the parts are not unduly difficult, it calls f...