Quote:




When you say b2 for example in the key of F are you referring to a "Gb" chord or adding a b2 to the Gm chord?


Thanks,




Quick reply, that’s all I have time for now. What you are leading to is what I have "tried" to study for the past 15 years !

But for now:

The b5 substitution (which is the also called tritone substitution) for a C7 (which is the V chord in the 1, 6, 2, 5, 1 where 1 is F) would be the Gb7 (which is the flat 2 of the F Major scale). With this new chord the progression goes from:

F, Dm, Gm, C7, F

to

F, Dm, Gm, Gb7, F

You have replaced the V chord in the sequence with its b5. Notice now how the root notes of the final 3 chords walk down in chromatically. Can add spice to standard progression

So in any key when you see a Dominate 7 chord simply replace it with its flat 5 and add some extra flavour.

Did this all on the fly (no guitar in my lap) so if I am incorrect on anything folks can …AND WILL , jump in to correct me.

BIAB – 2025, Reaper (current), i7-12700F Processor, 32GB DDR4-3200MHz RAM, Motu Audio Express 6x6 - My SoundCloud (Tip: No need to create a SC account to hear music - just hit ESC ).