Adam announced it as in Am and it only took a few seconds pentatonic noodling to confirm that worked so A C D E G. At various points to make it sad/bluesy I added F G# B. I might have bent to others but those were the ones I consciously added. Listen to my vid a couple of pages back and decide for yourself if they sound OK.
If you’re playing bass you can use all the pentatonic notes A C D E G at pretty much any time
The fifth of the root notes will also usually work when that chord is being played, don’t worry too much about all those m7b6(#11) if you’re on bass 😉
A fifth = E
D fifth = A
E fifth = B
Try the 3rd and 6th too, and the octaves of notes. The third and fouth bars of my effort in the vid are a similar melody at different octaves.
And trust your ears, it’s only a bum note if it sounds like a bum note. I’m intrigued to see what the others come up with.
Perhaps when we’re all done composer Adam will tell us what he had in mind and explain it in terms of scales that leave us even more confused than his chord sequence. 😉