I'm an intermedate guitar player. I have trouble finding the cords to songs esspecially off CDs. I've just been putting my electronic tuner in front of the speaker and reading the 1st couple of cords that read on the tuner from the beginning of the song. Then working with what I call standard cord progressions to find the other cords that seem to fit in the songs along with the cord changes. It feels laborious to me but I eventually get it and am usually pretty close when I play with others. But then I am very thin on music therory too.
Always appreciate the suggestions and style of others here on at mudcat