Four of the city’s finest free-jazz bassists will converge on the Hideout tomorrow night as part of the club’s Immediate Sound series. In conventional settings the bass often gets short-shrift, tracing out chord patterns and providing the form for an ensemble, but these players are all strong improvisers who masterfully braid rhythm with texture and melody. Josh Abrams, Ingebrigt Haaker Flaten, Nate McBride, and Kent Kessler will play in a series of duos, trios, and quartets.

Earlier in the evening the excellent trombonist Jeb Bishop will give a rare solo performance at Corbett vs. Dempsey as part of the closing for the gallery’s current exhibition by Ted Halkin and Katie Kahn.