Did you hear the California Guitar Trio at the Ann Arbor Folk Festival a few years ago, playing the last movement of Beethoven's Ninth Symphony, minus the voices but with pretty much everything else intact? Great news–this virtuoso trio has just released "Masterworks," an all-classical album featuring music by Bach, Barber, Beethoven, Schubert, Rossini, Vivaldi, and Arvo Pärt. They also play progressive rock, surf music, jazz, blues, country, probably the definitive version of "Bohemian Rhapsody," and some traditional North African and Asian sounds for good measure. Like most Californians, the three members of the California Guitar...