Q: Hold on major and minor keys are confusing me. So the notes in C major are the same as the notes in A minor, yes? So then is it possible to take a song that is in C major and say that it's in A minor? Or would that be sinful? How do you tell whether a song is in a major key or its identical minor key?
A: you'll just have to decide whether the home base is C or Amin. many many many many many many songs seem to balance it exactly evenly between both. many songs sound like the key of C for the chorus and Amin for the verses. one of the world's most popular repeating chord sequences is Amin, F, C, G, which feels exactly balanced between the relative major and minor