AROUND THE WORLD WITH KRONOS
SAN RAFAEL, CA—As usual, the fast-flying Kronos Quartet was innovating mightily. Instead of the standard string quartet concert program, on May 4 they offered a 10-piece musical mosaic based on world music—a double-espresso of surprises, which is hardly the regular cup of tea for string quartets. Are you new to Kronos, our seemingly ageless ensemble? In a nutshell: The four string players are always amplified, giving a more assertive and metallic sound; living composers of both gendersalways dominate; music is…