Last October, Digital Daggers jumped onto the scene with its dark and moody interpretation of Tears for Fears’ “Head Over Heels,” which was featured on “The Vampire Diaries” and has already attracted over 100,000 views on YouTube. Now, the band is back with an equally inventive cover, this time taking on the Liza Minnelli (and, later, Frank Sinatra) classic, “New York, New York.” [...]