I know a bit about keys and what they're for and what they mean. So if I was to drop from A to G, for instance, I'd basically play everything two frets down, and vice versa (I know it's more complicated when it comes to chords, but this isn't about that).
However, I've been asked to audition to play bass for a band that has a pretty extensive set list. They've also sent me a list of the keys they've changed a lot of the songs to (presumably so the female singer can manage them). I have no problem with that.
However, when I did a search for the original keys that the songs were in, so I can work out how to change them, I found something called Keyfinder. No idea how accurate it is (which is why I'm asking for help), but it says that the keys that most of the songs on the set list that have supposedly been changed to are actually the original ones.
Obviously, I don't want to get there having learned something in the wrong key, so how do I check what key a song is in? If I've got the original sheet music, I should be able to tell from the sharps and flats on the stave, but what if I can only find some chords with no stave?
Apologies for complicating such a basic question, but this is a level of music theory that's always made my head buzz, and I've never quite managed to figure it out properly.
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