MELON BALL. Spruce Ritual, described as “raga-infused chamber music,” is the combination of the enormous talents of Lucian, Hannah Addario-Berry (principal cello of San Francisco Chamber Orchestra), Ivo Bokulic (principal viola of San Jose Opera), Will Marsh (sitar) and long-time collaborator Josh Mellinger (tabla).  Together, they weave an intricate tapestry of music using techniques, harmonies, and rhythms of both western classical music and north Indian classical music. 8p—10p. $20