The young New York livetronica quintet Digital Frontier expanded into the world of hip-hop last night in Manhattan. The group, which plays a trancey brand of jam featuring flute, synth and guitar, was joined on stage by MCs Charles Hamilton and Yung Nate for a cross-genre mash-up at the Bowery Poetry Club. The sit-in served as a flawless segue between the band’s set and the hip-hop act that followed. Digital Frontier first assembled early in 2006 but is fast gaining traction and renown in New York City.