The Pendereckians have been champions of new and imaginative musicmaking for nearly a quarter century. Formed in Poland at the behest of composer Krzysztof Penderecki, the globe-trotting foursome--violinists Jeremy Bell and Jerzy Kaplanek, violist Christine Vlajk and cellist Simon Fryer--has performed repertoire stretching from Brahms to Zappa and premiered more than 100 new works. The longtime quartet-in-residence at Wilfrid Laurier University in Canada, the ensemble makes a welcome return to Los Angeles with a program of contemporary string quartet literature enhanced with video: Veronika Krausas' Midaregami (Tangled Hair), featuring mezzo-soprano Jacqueline Bobak, with video design by Robert Drummond; Arnold Schönberg's Entrückung, also with Bobak; George Crumb's Black Angels; and Michael Gordon's Weather Part One, featuring the quartet and a dozen CalArts players on amplified strings accompanied by live electronics.