Musician Howard Fishman has been out of the limelight the last year or so because he’s been working away at some new music, three new albums, in fact, and he will be debuting each one on three consecutive nights, beginning this Thursday, at Abrons Arts Center. Each evening of music is set against a specific geographical backdrop: New Orleans (Better Get Right) on November 4, Romania (No Further Instructions) on November 5, and Brooklyn, New York (The World Will Be Different) on November 6.