AboutNineteen musicians from the Brooklyn improvisational community play two sets of music by conductor-composer-tenor saxophonists Anna Webber and Angela Morris. The specific gifts of this generation of jazz musicians, who are as adept at angular notated polyrhythms as free improvisation and everything in between, informed the composers as they wrote this program over the past five years. The pieces draw on poetry, early blues, games of chance, number theory, and semi-harrowing life experiences. In the spirit of their mentors, John Hollenbeck and Darcy James Argue, Webber and Morris, compose music that blurs the line between composed and improvised sections while maintaining a strong narrative arc. This performance at Roulette is a precursor to the ensemble’s debut album, which will be released on Greenleaf Music.