My comment may be irrelevant with all that's been said.

Me...
I remember when I struggled with this back in the 70's.
What I did (in trying to find the 'key') as I was listening to the song's verses I tried to find the 'tonic' note by playing the low E (up and down the neck) on my axe to hear what sounded right.
If a fifth fret A sounded right then I'd try a Maj or minor chord during the verse.
Either should be somewhat easy to determine at this juntcure.

That worked for me and I find it somewhat easy now.

EDIT: then once one knows the tonic (key) then they must rely on their basic theory to know what other chords are in that key.

Yes...it still requires some ear/listening discipline to get better at it.

Hope that helps AND that this point wasn't mentioned earlier. smile

Carry on....


Last edited by chulaivet1966; 07/29/15 12:58 PM.