#1
Okay, I know you all have heard questions like this a million Chuck Norris times, but I'm changing it slightly...

I know for major keys, you go whole whole half whole whole half whole; then minor II, III, IV, VI, and VII, then diminish VIII. So, all these 7 chords, and chords like.... Eb7+9, or just E7, or E + 9how can you tell what key they're in?