The week ahead in L.A. classical music, April 22-29: Brentano Quartet with Dawn Upshaw and more

Camerata Pacifica Program includes the world premiere of Lera Auerbach’s 24 Preludes for Viola & Piano, plus Schubert’s Piano Trio. Museum of Ventura County, 100 E. Main St., Ventura. Sun., 3 p.m. $50, $56. (805) 884-8410.

Celebrate Colburn Guest conductor Michael Tilson Thomas leads Colburn Orchestra…