I bought Django's "The Classic Early Recordings in Chronological Order" several years ago and I love it. I've been a guitar player for 20 years now playing other styles and finally decided to start learning some of Django's music. I also want to build up my collection of music. What would be the next most essential Django recordings? I don't have any of his later stuff or his electric stuff. Also, what are the classic non-Django gypsy jazz recording to buy first? Something by Bireli or the Rosenbergs?