Most of the guys and gals here, already know this... but maybe helpful to beginners.

Very interesting for those who need it....
enjoyable to watch....Thank you

That is interesting,even thou,or because I am not a left hand bass player. The closest I come is playing ensemble(full keyboard) with my band with strings,brass, or organ. I am probably not doing that correctly,play octave,or 1-3-5 etc. It is a worthy endeavor,nonetheless.

Instructive and succinct. Thanks