Considered a brilliant and boundless singer, Theo Bleckmann is a one-of-a-kind interpreter of others’ music, as well as a composer for theater, opera, and film. The Grammy nominated vocalist has worked with Laurie Anderson, Anthony Braxton, Philip Glass, and John Zorn, and was a member of Meredith Monk’s Vocal Ensemble for 15 years. Bleckmann’s music is sophisticated yet accessible, emotional without being sentimental, and seriously playful. His latest recording, Elegy, was just released on ECM — his debut for the label as a leader — and features his quintet. Bleckmann will perform with that group at Big Ears. Plus, on Sunday, festival goers will be treated to a performance by his longstanding, kaleidoscopic duo with guitarist Ben Monder (who – after a quarter of century of terrific recordings and performances – achieved overnight fame from his stunning work on David Bowie’s swan song, Black Star).