Harrison House will host an East/West chamber music concert 7 p.m. Sunday, September 20, by SANGAM, with sitarist Paul Livingstone and cellist Peter Jacobson. From Bach cello suites to Indian ragas and Latin grooves, Livingstone and Jacobson will present an eclectic mix of musical meditations and dynamic improvisations. Tickets are available for a requested donation of $15 at Joshua Tree Health Foods, 29 Palms Highway at Sunset Street, in Joshua Tree. Harrison House is located at 6881 Mount Lassen Avenue in Joshua Tree. For more information, call 760-366-4712.