For example, in jazz, you might call the IVm-♭VII7 motion a “backdoor ii-V“, which is simply a type of modal interchange. The “Coltrane Change” and “So What voicing” are similar cases.
This hit the sore spot, that’s true😂
And as you explained it, I’m gradually getting more interested. Indeed, the idea of a standard form in inversion is intriguing.
On improvisation, what scales do you play on this chord?