Sarah Cahill, recently called “fiercely gifted†by The New York Times and “as tenacious and committed an advocate as any composer could dream of†by the San Francisco Chronicle, has commissioned, premiered, and recorded numerous compositions for solo piano. For this concert, she will perform recent works by Ingram Marshall, Meredith Monk, Evan Ziporyn, and Paul Dresher (a San Francisco premiere), and will be joined by pianist Regina Schaffer for several recent four-hand pieces by Terry Riley commissioned by Cahill. Also on the program are selections from Mamoru Fujiedas Patterns of Plants.