At Barbès, trumpeter Kenny Warren brings his group Sweet World into the room for a straight-ahead live jazz set shaped by composition and close listening. The music sits in the lineage of New York small-band writing, where melody and counterpoint matter as much as solos. Barbès itself carries Brooklyn’s post-2000 club history, a steady node for neighborhood-scale experimentation. Warren’s project makes a case for restraint as a form of intensity, letting structure do the talking.