The only other person I've heard is a guy I've mentioned here recently, Stockolo Rosenberg. I have a tape of the Rosenberg Trio and this fella's playing is devastatingly good! Other great players have tried and failed, Martin Taylor, a tremendously gifted jazzer, was given the opportunity to duet with Grappelli and released a C.D. "The Spirit Of Django". After their time together Grappelli was asked what he thought of Taylor. "Well he's no Django Reinhardt" came the reply!