Named after a celebrated African American heroine who liberated 300 slaves, the Harriet Tubman Trio is a powerhouse of New York’s experimental jazz scene. Since forming 20 years ago, guitarist Brandon Ross, bassist Melvin Gibbs and drummer JT Lewis have forged a uniquely earth-scorching sound that mixes epic, groove-heavy jams with jazz-rock improv inspired as much by Jimi Hendrix as by Miles Davis.