[jj]

agree with everything mike posted (well this past post anyhow, lol)...as stated earlier, these keys are based on studio recordings so current live show may differ here and there for GL's practical purposes)

just a note: i never played in GL keys (at jams or along with LPs) ever until last week so that's why i got onto this as a reference...i usually would have a tune in my mind from an earlier listen and then when a guitar or piano was handy i would land on D or G or A, C perhaps, cos there's good muscle memory there and that's usually where campfire guitarists will end up and there are no capos up here at campfires or cool farmhouses or cabins cos between the nip of the night air and the dry heat of the fire or woodstove, being nice to the strings and neck doesn't not include putting on those clamps, lol

there have ben beginner jams where everything is played (GL or otherwise) in the key of G major (C D Am Bm Em A etc) or E minor ....it keeps things moving along

we will throw on a capo 3rd fret and play in E with others playing without capo in G to get that voicing variety you spoke of mike...there are many options there (C+2 D, A+3 C, etc)....a good question would be what tunes do GL and Terry have alt capo positioning between the two of them...for instance, SFAWN

anyhow, GL tunes and my limited range don't mix so if I had my way I would probably transpose to a key that's about 1/2 an octave from GL's...ie, if he plays in G with capo+2, i am probably playing in D...it's unfortunate but it's also lead to some good mental exercises over the years

reviewing the list i've confirmed my ear is partial to the tone of certain keys

lastly, for beginners, i would encourage trying to form chords (eg. G) using your little finger instead of ring finger when possible as it opens doors for some noodling...same with piano or keyboard, get your pinky dexterity happening before the muscle memory of bad habits become hard to forget