Sharon has the truth of the situation in her explanation.

FWIW I'm agreed with Sharon about scale vs the chord patterns and it falls in line with what Carole Kaye has a lot to say about as well. The scalar method prepares the player to play, well, scales. Lots of the jazz idiom, not just Gypsy, relies on mastering the arpeggio stuff. Many of the older greats emphasized playing off of chord patterns as their base methodology as well, which amounts to saying pretty much the same thing.

https://www.youtube.com/watch?v=s9idtdWAAEA

"Nobody back in the fifties played note scales...." -- Carole Kaye


--Mac