I'm new at guitar I was wondering how to tell what the key of a song was, like what the rhythm guitar plays. Can anyone help me please? Thanks
Yeah winsbury is right. You might need to learn some theory, and after seeing what kind of chords are in the progression you can figure out the key for most easily arranged songs.
+1 on learning theory - it's not something that can simply be answered in a single post, you're going to need to do some studying. Try the Crusade articles for starters, in the Columns section.
Actually called Mark!

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