San Francisco-based string quartet plays String Quartet in C major, Op. 54, "Tost", No. 2 by F. Joseph Haydn (1732-1809), String Quartet No 7 in f-sharp minor, Op. 108 by Dmitri Shostakovich (1906-1975), and String Quartet No.12 in F major, Op. 96, B.179, "American" by A. Dvorák (1841-1904). (2021)