Well-spotted, Retro.
Thanks.
The essentials up from the root are the third and the seventh – these tones tell you whether it’s major or minor or dominant or half-diminished (or diminished) – and are the essence of their ‘shell’ voicings.
Pat Smith has a neat intro to the concept in his
Lenny learned ‘shell’ essentials from Albertan pianist Bob Erlandson (I know I’ve mis-spelled it), who picked it up, like everyone else, from Bill Evans.
It means if you’re working with a bass-player that you don’t even need to worry about playing the root.
Then you just add the extension to the shell – you don’t need 7 strings at all.
You might, for instance, choose to voice a 13th chord from the seventh, heading upwards, to the third, and then the thirteenth – so you have a nice little stack of McCoy Tyner-ish fourths – I am fond of the sound of fourths – but you really have enormous choice and flexibility with the shell.
Does melody imply harmony? – yes, I think so – it always does to me anyway.
Which one? – all those you can hear contextually inside your head.
Yup – I think so, too.
Bear in mind that I don’t play anything worth speaking of – especially guitar – too damn hard to figure out all this theoretical mumbo-jumbo – unlike the handily diagrammatic and graphically laid-out piano keyboard, that’s for sure – which helped me get to grips with ways of ‘seeing’ harmonic relationships.
As a singer, I want to be able communicate with other musicians - that's why I had to get to grips with it.
As a tyro wannabe arranger, I want to follow as much as I can and be able to decode chord spellings in order to misrepresent them (smile, please).
As a late and constant learner, those ‘finer points of voice leading’ to my ears involve the shell of 3rds and 7ths moving nicely in graceful baby-steps.
For Example:
The standard II-V-I turnaround in C – being Dm7 – G7 – CMajor7:
The 3rd of Dm7 is F, and the 7th of Dm7 is C
For G7, the F becomes the 7th, and the C drops down a half-tone to B – becoming the 3rd.
That B then easily becomes the defining 7th of CMaj7, while the F drops a half-step to its 3rd, E.
That’s why it sounds so sweet and natural, I think.
Plus, maybe instead of the bass movement describing the roots D to G to C, you may even choose baby-steps there, too – having picked up on Pat Smith’s passing reference to tri-tone substitutions in the video above.
(The tri-tone substitution rule says that any dominant chord can be substituted by another dominant chord whose root is a b5th away (a ‘tri-tone’ in distance) – which happens very nicely because the 7th and the 3rd of the chords simply swap their functions around. In our example, it means the G7 can be substituted by Db7 so that B, the 3rd of G7, becomes the 7th for Db7, while F, the 7th of G7, becomes the 3rd of Db7.)
The tiny but effective result is that the bass/root movement, instead of D to G to C, can make the little baby-steps D to Db to C.
Hope that helps someone out there instead of adding to being "****ed up"
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