Her music tends toward a skittering, pre-minimalist sound, but D.C. composer Anne LeBaron‘s The E&O Line will probably benefit from its engagement with blues and gospel. Dubbed an “electronic blues opera,” this retelling of the Eurydice and Orpheus myth (transplanted to the American South in the ’20s) features a libretto by Thulani Davis and such exemplary musicians as operatic singer Thomas Young (as O), Sweet Honey in the Rock veteran Ysaye Barnwell (as E), pianist Myra Melford, and saxophonist Joseph Bowie. Tonight and Saturday at 8 p.m. at the University of the District of Columbia Auditorium, 4200 Connecticut Ave. NW. $15. (202) 783-0360. (Mark Jenkins)