Part of the inaugural round in Sony Legacy’s new Legacy Edition series—reissued albums remastered, repackaged and expanded to double-disc length (à la Universal’s Deluxe Editions)—”Live at Sin-é” is the latest and one of the most valuable of several posthumous Jeff Buckley sets. His debut release from 1993, the original four-song “Live at Sin-é” EP, was merely the seed for this vastly longer collection, which consists of 34 tracks of music and banter on two CDs. There is also a bonus DVD featuring an interview and additional performances that will have fans swooning. Buckley was obviously at home in tiny café Sin-é in New York’s East Village. In addition to without-a-net versions of songs later made famous on his first full album “Grace,” there are impromptu covers of everything from Bob Dylan to Nusrat Fateh Ali Khan. Listening to such a vital, youthful spirit, it is hard to believe he is gone.—BB