We were using Minor Swing as the basis. Here it is.
Stephen Grapelli is a brilliant instinctive fiddler. I saw him play here in Edinburgh years ago.
Django Reinhart was a guitar legend who managed to play with two fingers better than most can play with them all.
I was improvising eastern european jazz today using the harmonic minor scale over Am, Dm and E7. Also enjoyed playing the chords while others had a shot. It helps to internalise the chord progressions and tonal centres.