The War Memorial Opera House photographed on Dec. 11, 2019. The musicians of the San Francisco Opera Orchestra will perform a free community concert on Sunday at the San Francisco Conservatory of Music at 50 Oak St. The concert, Harmonic Interlude, will be conducted by opera orchestra first violinist…

The theater at the War Memorial Opera House photographed on Dec. 11, 2019. Adam Pardee/Staff. The War Memorial Opera House, home to the San Francisco Ballet and San Francisco Opera, will get new custom-made seats and other modern improvements in the final phase of a refurbishment project. The work,…