Thinking about my post on gypsy jazz scales it seemed to me that it would be better if I could produce examples of arpeggio licks for readers to try. After a little fiddling around here is my first one (as described in the earlier post). It is simply the notes of a C major triad (or any other major triad if you slide it up and down the fretboard) with additional notes a semi-tone below each. The numbers show the order in which the notes should be played.
You could play this lick in a number of different rhythms and articulations. Each note could be one beat so the lick spreads across 2 bars, or each note could by a swung quaver in which case it would fit into one bar. Each note could be picked, or just the first note of each pair and then hammer-on the second. I find it easiest to play this with just the first two fingers of my left hand, as Django would have done.
You can also try starting on the triad note (i.e. number 2 in the diagram) going down a semitone and then back up to the triad note again, probably with a triplet rhythm.
Notice how the triad notes in this lick are the top four notes of a straightforward C major bar chord: