@Bob, thank you! I try to speak up only when I feel like I might be able to add to the conversation
@Fer, when you say "like an inversion of Badd9#5", this was a point that I had raised a few posts back: sometimes it's easier to view a specific voicing as just an inversion of a more common chord, which often times makes the process of assigning a PMG much easier.
I had mentioned the voicing of Db G B Eb Gb could easily be viewed as an A13#11 in First Inversion (C# G B D# F#) - even though the root A isn't present (more on that later).
The more I play this voicing, the more I find that I can't help but hear it that way. Dominant 7th #11 chords seem to be EVERYWHERE, and to me they are a 'common sound'. Catagorizing this voicing as an inversion of PMG II chord from G Lydian Augmented seems to be a very direct way to handle this particular sound.
This brings me to my larger point (something I've been messing with for YEARS since being introduced to the LCC):
As a guitarist, I like using a lot of 4-note and 5-note voicings. The tricky part for me USE TO BE when I would encounter a chord like A13#11 and I would think "How do I get a good voicing for this chord on a 6-string instrument?"
I sat down one day and made a list of every 4-note voicings I could use in a "Lydian" context (playing over a Maj7, Maj9, Maj9#11, Maj13#11 etc.).
My list was this:
Voicings beginning with Root and 2:
R-2-3-#4 R-2-3-5 R-2-3-6 R-2-3-7
R-2-#4-3 R-2-#4-5 R-2-#4-6 R-2-#4-7
R-2-5-3 R-2-5-#4 R-2-5-6 R-2-5-7
R-2-6-3 R-2-6-#4 R-2-6-5 R-2-6-7
R-2-7-3 R-2-7-#4 R-2-7-5 R-2-7-6
Voicings beginning with Root and 3:
R-3-2-#4 R-3-2-5 R-3-2-6 R-3-2-7
R-3-#4-2 R-3-#4-5 R-3-#4-6 R-3-#4-7
R-3-5-2 R-3-5-#4 R-3-5-6 R-3-5-7
R-3-6-2 R-3-6-#4 R-3-6-5 R-3-6-7
R-3-7-2 R-3-7-#4 R-3-7-5 R-3-7-6
Voicings beginning with Root and #4:
R-#4-2-3 R-#4-2-5 R-#4-2-6 R-#4-2-7
R-#4-3-2 R-#4-3-5 R-#4-3-6 R-#4-3-7
R-#4-5-2 R-#4-5-3 R-#4-5-6 R-#4-5-7
R-#4-6-2 R-#4-6-3 R-#4-6-5 R-#4-6-7
R-#4-7-2 R-#4-7-3 R-#4-7-5 R-#4-7-6
Voicings beginning with Root and 5:
R-5-2-3 R-5-2-#4 R-5-2-6 R-5-2-7
R-5-3-2 R-5-3-#4 R-5-3-6 R-5-3-7
R-5-#4-2 R-5-#4-3 R-5-#4-6 R-5-#4-7
R-5-6-2 R-5-6-3 R-5-6-#4 R-5-6-7
R-5-7-2 R-5-7-3 R-5-7-#4 R-5-7-6
Voicings beginning with Root and 6:
R-6-2-3 R-6-2-#4 R-6-2-5 R-6-2-7
R-6-3-2 R-6-3-#4 R-6-3-5 R-6-3-7
R-6-#4-2 R-6-#4-3 R-6-#4-5 R-6-#4-7
R-6-5-2 R-6-5-3 R-6-5-#4 R-6-5-7
R-6-7-2 R-6-7-3 R-6-7-#4 R-6-7-5
Voicings beginning with Root and 7:
R-7-2-3 R-7-2-#4 R-7-2-5 R-7-2-6
R-7-3-2 R-7-3-#4 R-7-3-5 R-7-3-6
R-7-#4-2 R-7-#4-3 R-7-#4-5 R-7-#4-6
R-7-5-2 R-7-5-3 R-7-5-#4 R-7-5-6
R-7-6-2 R-7-6-3 R-7-6-#4 R-7-6-5
After spending some time with these voicings on my instrument, I made note of which ones I really liked so that I could come back to them.
Then I moved on to playing INVERSIONS of all of these voicings. THAT took quite some time.
Then I started doing this with each of the individual Scales (Lyd Aug, Lyd Dim, etc.)
And then something magical and life changing dawned on me: leave out the Root dummy!
Once I started to build voicings (and inversions) that were Root-less, I began to see (and hear) chords in a whole new way. Everytime I play a voicing now, that's all I'm concerned with: no matter what notes I'm playing in this voicing, how do I 'hear' it, and where does it fit in.
If you write it all out (like I did over the course of several years), it's thousands of voicings and inversions - but is some of the most valuable time I have ever spent on my instrument, and it all came from the LCC.