An Improviser's Essential Element
As that title suggests, the focus was on the (Melodic) Minor “Bebop Scale”, the name coined by jazz education pioneer David Baker in the 1970s, as well as its history as a melodic device introduced by the Bebop pioneers of the 1940s.
To clarify once again, a Bebop Scale is a Major Scale with an added passing tone between its 5th & 6th scale degrees (Ab in C Major). Its purpose was to rhythmically “even out” groups of eighth notes – the eighth note being the primary rhythmic unit or “feel” of the Bebop melodic line.