MUSIC: SeaweedSway Sunday presents local choir, Conspiracy of Beards, which is comprised of 30 men performing exclusively Leonard Cohen songs a capella in complex four- to five-part harmonies, and Beards' sister band, Conspiracy of Venus, a women's a capella choir with 40 to 50 members singing modern and classic tunes, plus more.

7:30 p.m. // Make-Out Room (3225 22nd St) // $8

MUSIC II: At Gergiev and his Mariinsky Orchestra Plays Prokofiev and Tchaikovsky, the ballets Cinderella and Romeo and Juliet and Tchaikovsky’s Fifth Symphony will be performed, evoking "passions both tender and raw, and emotions that begin in turmoil, then rise and crest in an apogee of triumph."

7 p.m. // Davies Symphony Hall (201 Van Ness Ave) // $15-100