Editor -- As a lifelong attendee of classical music performances in the Bay Area, I am no longer surprised when a Chronicle reviewer trashes a good performance by a talented musician or ensemble. But ...

Almost anything can be a musical instrument. A horse’s jawbone? A couple of rocks, a stick, and some string? An armadillo shell? A box with a constantly buzzing antenna sticking out of it? Something ...

Your article about the Pierre Auger Observatory contains an inaccuracy of which your readers should be aware (17 May, p 9). At present, just over 2 per cent of the Southern Observatory has been ...