Only an Octave Apart

This staged 12-concert series features cabaret fave Justin Vivian Bond and opera countertenor Anthony Roth Costanzo in a clash of genres, performance styles and voices. They’ll perform works that range from Purcell’s 17th-century aria “Dido’s Lament” to Dido’s 21st-century hit “White Flag.” In celebration of St. Ann’s reopening, this series nods to the space’s history of mixing music and theater.