Written in the 1970s, Zorn’s earliest game pieces are legendary (often discussed and workshopped in secret but rarely performed in public) and Curling from 1978 is one of the most elusive and hermetic. Focusing exclusively on long tones, it is quite unusual in Zorn’s canon—meditative, minimalist, and hypnotic. Performing here are two ensembles from the Bay Area that have had close ties with Zorn for over forty years and are perfectly suited to execute this challenging and beautiful work. The Rova Sax Quartet and the William Winant Percussion Group are both masters of composition and improvisation and here they take this seductive score to astonishing new heights.