resources for "chord-by-chord" approach
(looking at chord tones and specific scales for each chord)
The chord-by-chord approach to improvising is much more complex and takes time to learn. In contrast to the one-scale-fits-all approach (where just one scale can be used to improvise over a sequence of chords) the chord-by-chord approach involves exporing the detail of each individual chord. Chords are typically described using "chord symbols".
The chord symbol notation system that we have today is rather ad hoc and full of inconsistencies - not a precise science. It has evolved organically over time, different musicians using different symbols to denote the same things.
The following sheets are just numbered chronologically from the JCOL@NOON sessions (in the order in which they occurred).