I was lucky enough to play with Robin a few months back when he came over to play in Copenhagen. After the gig, being the kind and generous person that he is, he came up to me and gave me a copy of “The Gig Book“.
 This is a great resource for anyone playing or wanting to play gypsy jazz standards. Each tune has the melody in guitar tab and suggested Gypsy Jazz Chord voicings.
I notice that he now has a new book out where the reader can learn how he approached writing new Gypsy Jazz tunes, I suspect it’s well worth the read.