I also really enjoy Django's solo work. It is interesting to note the way Django sometimes seems to be experimenting with pieces when he plays unaccompanied, such as playing nuages in F rather than in the usual key of G. He seems to favor certain keys most of the time for his solo work, Am being an obvious favorite. I sometimes get the sense that Django spent a lot of time playing and experimenting this way for his own pleasure and amusement.
When I play the unaccompanied pieces I usually play them fingerstyle, although I am asuming Django was usually using a pick, although there is a lot of string-skipping, usually more natural for fingerstyle. Does anyone know if Django ever played any of his unaccompanied pieces without a pick?