The Schwabacher Recital Series, presented by the Merola Opera Program and San Francisco Opera Center, is set to present its second concert on March 19 in the Barbro Osher Recital Hall at San Francisco Conservatory of Music’s Bowes Center. The evening will highlight the artistry of four 2024 Merola Opera Program graduates: tenor Michael John Butler, baritone Olivier Zerouali, and {…}