Composing classical music is a common career move for aging rock stars too ambitious or artistic for post-prime stadium tours. Nothing, after all, says “serious musician” like conducting an orchestra at Carnegie Hall. But if Billy Joel and Paul McCartney’s output has underwhelmed, don’t write off Tyondai Braxton. The former frontman of the post-rock group Battles, Braxton collaborated in 2009 with New York’s Wordless Music Orchestra to create Central Market. It’s an album of pulsing, dissonant pieces that fit comfortably in the company of Stravinsky and other classical innovators. At least, that’s the premise for this free concert at the Library of Congress, where WMO will perform Braxton’s compositions alongside the work of John Adams, Louis Andriessen, and other 20th century classical luminaries.

WORDLESS MUSIC ORCHESTRA WITH TYONDAI BRAXTON PERFORMS AT 8 P.M. AT THE LIBRARY OF CONGRESS’ COOLIDGE AUDITORIUM, 101 INDEPENDENCE AVE. SE. FREE; TICKETS REQUIRED. (202) 707-5000.