Banners at the flash mob protest
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The focus of a Saturday-night St. Louis Symphony Orchestra concert took a dramatic shift away from classical music when a group of Michael Brown protesters crashed in the form of a flash mob, the St. Louis Post-Dispatch reports.

According to the report, after the intermission the orchestra and chorus were gearing up to perform Johannes Brahms’ Requiem when two attendees came down into the middle aisle of the main floor and began singing “Which Side are You On,” only to be soon joined by other protesters standing at their seats all across the concert hall.

The protesters also began unfurling banners, including one that read “Requiem for Mike Brown” and listed the years of his life (1996-2014). 

The protest caused about a five-minute delay, in which there was some applause from attendees as well as performers. Others, the Post-Dispatch notes, remained silent.

The protesters eventually left on their own, chanting “Black lives matter,” before the conductor resumed the performance.

Read more at the St. Louis Post-Dispatch.