Hi there, Steemit jazz and blues lovers! The day job has me tired as fcuk! lol
That aside, here is a cool little practice using the minor-7 chords as tritone subs as I carry on in G-Major. A-flat minor 7 subs for V of G (D) and B-Flat minor 7 subs for the VI chord (E)...There is lot's one can do here but a real simple thing to do is just play a major scale a half step down from G-major...So play G-Flat or F-sharp major scales (pentatonic or otherwise). Gotta like those black keys, eh? Cheers! You can pick out the chords easily towards the end and I left a bit you can practice to, too:)