If you memorize the four-bar cycle on that page and transpose it to the other keys Vincent lists, you will have a functional vocabulary for 80% of the Great American Songbook.
: Alter the G7 chord with a b9 or #11 to add tension. Jazz Guitar Voicings Randy Vincent Pdf 51
The PDF lays this out visually. It turns a frightening key (Ab major) into a comfortable hand position. If you memorize the four-bar cycle on that