I am a little confused about intervals. Does the fact that the notes involved in a particular interval are different depending on whether or not you are ascending or descending from a particular scale degree confuse anyone else? Say I'm trying to tell someone how to play a particular tune and I say "starting at the root, play a Major 3rd". Well, in the key of A, a Major 3rd could be a Db or Gb depending how you look at it. I thought I understood this but now I'm all confused.