San Francisco Performances (SFP) presents mezzo-soprano J’Nai Bridges and percussionist Ulysses Owens Jr. in a program titled “Notes on Hope,” April 1-28 at the Herbst Theater. The event features works by 20th-century French composers, Duke Ellington, and traditional spirituals. The “Notes on Hope” program will explore works by Duke Ellington and revive classic songs that well-known opera singers Jessye Norman, {…}