[quote name='sarah thomas' timestamp='1342012782' post='1728029']
Crikey Fumps, you've leapt right over my head! Brilliant.
Your chart makes sense to me, coming at it from a different angle. Taking the key of C, C major is the scale of the first mode, also called the Ionian mode. Still in the key of C, D minor is the scale of the second mode, known as the Dorian mode. It is exactly the same as playing the C major scale, only you start and finish on D. (There are different minors, this one is known as the Dorian minor.) I'm not certain of the names of the other modes, except for the 5th mode, which is called the Mixolydian mode and in the key of C, starts on G, uses the notes of the C major scale, and ends on G.
So in F major, the first chord uses the F major scale (F Ionian) starting on F and ending on F. The second chord (Dorian mode) uses the F major scale, starting on G and ending on G. The third chord uses the F major scale starting on A and ending on A. The fourth chord starts on Bb and ends on Bb flat. And so on.
I hope that makes sense. I'm struggling now! It seems weird that starting and ending a scale on a different note can make it sound so different, but it does. Try it!
[/quote]
I think you're mixing up intervals and scales
The chart is for intervals, not scales (although you can derive scales from the chart aswell).