Chamber Music

The idea that numerical properties underlie music has interested people since at least the Middle Ages.

The Presidio is a dark corner of the City by the Bay, surrounded by thick forest, ancient military architecture, and a memorial cemetery. It’s one of the few places on San Francisco’s map where the relentless grid of straight roads gives bending way to some of the steep hills.

On Mother’s Day, as on most holidays, concertgoing opportunities will be limited, as presenters fear loss of their audience to other activities, such as the

Folks who showed up at Berkeley’s Music Sources Sunday evening, expecting to be transported to the Dorset Garden Theatre in 17th-century London, found that the Theatre’s advertised program had undergone some changes. Since a couple of key players in the Galileo Project had transported themselves back to Estonia, said Project had withdrawn from the program.

Members of New York’s venerable Chamber Music Society of Lincoln Center are spending April touring a program called American Voices. Thursday at Herbst Theatre, the centerpiece of the program, which spans the 18th to 21st centuries, was a new song cycle by Alan Louis Smith, Vignettes: Covered Wagon Woman.

New chamber groups spring up all the time, usually without fanfare. But the new Eidolon String Quartet deserves attention because its founder is Franklyn D’Antonio, concertmaster of the Berkeley Symphony, and former member of the Chicago Symphony and the Los Angeles Philharmonic.