Old Locks and Irregular Verbs

Old Locks and Irregular Verbs is an album by American jazz saxophonist Henry Threadgill, which was recorded in 2015 and released on Pi Recordings. It features an extended work that Threadgill composed as a tribute to cornetist and composer-conductor Lawrence D. Butch Morris, who died in 2013. Morris and Threadgill were old friends and colleagues on the New York City jazz scene; they both performed on Ming (1980) by David Murray. Threadgill formed a new band for the occasion named Ensemble Double Up, a septet where he doesn't play, but instead conducts.