Unfortunately I pressed some button I don't know and what I had typed for the past 20 minutes disappeared
In summary, I was explaining to Floaded that there was some ambiguity in the question, but the way that T answered is the best way to answer [generically, so that one can apply the tools anywhere instead of a specific song.]
Let me give an example:
T said on the 2nd point that you can add a m7:
I had given an example of
Majesty by Bishop T.D. Jakes:
eg, Bishop T.D. Jakes'
Majestyin Eb
Cb/F-Ab-Cb-D
C/G-Bb-C-Eb I [instead of C/G-C-Eb ] (to make the chord sound phatter, you can play C-G-Bb/G-Bb-C-Eb)
D/Bb-D-F wor-
Eb/Bb-Eb-G -ship
Ab/Eb-(G)-Ab-C You etc
Then there are many other subs one can make. For example:
1. Instead of the minor triad, you can play a diminished chord that gives you the melody note on top. In this song's case, that is the Gb dim6 chord:
eg, Bishop T.D. Jakes'
Majestyin Eb
Cb/F-Ab-Cb-D
C/Gb-A-C-Eb I [instead of C/G-C-Eb ] alternatively, you could play Adim/C [C/A-C-Eb]
D/Bb-D-F wor-
Eb/Bb-Eb-G -ship
Ab/Eb-(G)-Ab-C You etc
2. You can play a quartal. some quartals are very obvious, some come with practice. I've just discovered that you can sub most chords you play with a quartal. The key is to have the melody note on top [or at least have it somewhere on the quartal. But I prefer to have it on top- much safer. the same with the song example. only that the quartal is not so obvious, but I believe it's there [master teachers, you can correct me if I'm wrong]:
eg, Bishop T.D. Jakes'
Majestyin Eb
Cb/F-Ab-Cb-D
C-G-Bb/Eb-Ab-Bb-Eb I [instead of C/G-C-Eb ] (quartal 1)
D/Bb-D-F wor-
Eb/Bb-Eb-G -ship
Ab/Eb-(G)-Ab-C You etc
or
Cb/F-Ab-Cb-D
C-G-C/F-Bb-Eb I [instead of C/G-C-Eb ] (quartal #2) or C/F-Bb-Eb
D/Bb-D-F wor-
Eb/Bb-Eb-G -ship
Ab/Eb-(G)-Ab-C You etc
I've just been learning how to apply the power of quartals in my playing, it's fun. was it not for time, I would share with the fam how you can easily transform almost any basic triad into a sweet sounding chord by just playing simple quartals.
3. This option is only for special occasions- where you play a major triad instead of the vi chord. It is to be used with caution and chosen correctly for it to have a positive impact.
eg. in the same song, it has been successfully used in a 6-2 progression.. you can practice this progression and fiigure out other areas you can effectively ue it in [I know that in jazz circles they use a major 3 triad very powerfully and I've discovered many songs where I can use it to take the song to the next level.
Here is the 6-2 progression in Majesty:
Bb/Bb-D-F
C/C-E-GF/C-F-Ab You are
G/Bb-Eb-G ro-
Ab/Ab-C-Eb -yal-
Bb/Bb-D-F -ty etc
Again, some theory can help you predict what type of subs you can use to get the sound you need.
for example, in the same song above, I could still get away with using the theory of tritones and say, instead of playing C, I can play its tritone partner , so
Gb/G-C-Eb. Alternatively, I can take the 7th and 3rd and put it all together, so Gb-Eb/G-C-Eb.
Alternatively, I can use any note of the related diminished chord the bass. So we have used the Gb, C and Eb [the 6 and 1 bass notes can be used interchangeably most of the time]. The remaining note is the A.
So we have A/G-C-Eb. This is how T got that F# as a bass note in his example. Again, this proves that by teaching generic concepts, you cover a whole lot more than giving a specific example for one song.