Michael Brown protesters interrupted the St. Louis Symphony Orchestra’s concert on Saturday night, causing a brief delay in the performance at Powell Symphony Hall.

The orchestra and chorus were preparing to perform Johannes Brahms’ Requiem just after intermission when two audience members in the middle aisle on the main floor began singing an old civil rights tune, “Which Side are You on?” They soon were joined, in harmony, by other protesters, who stood at seats in various locations on the main floor and in the balcony.

The protesters then unfurled three hand-painted banners and hung them from the Dress Circle boxes. One banner listed the birth and death date of Brown, who was shot by Ferguson police Officer Darren Wilson on Aug. 9.