Originally Posted by: zreynoldspTry looking up diatonic harmony somewhere like this .... it's all pretty obvious once you get going

Here's something from that site you posted that I don't understand.

................II Chord
..................D-7
..Scale.......................Chord
.Degree.......Note.........Tone
_________________________
....2..............D............Root
....4..............F.............b3
....6..............A..............5
....1..............C.............b7

Ok. I understand it to some extent. F is the 4th scale degree because in the Key of C (which this example is supposedly in), F is the fourth note. So why is the chord tone b3?