Notation note: scales will be notated as C Major, D minor, etc. and chords as Am, F, etc.
Once you know a scale, yo know which chords it contains, for example the C Major scale contains the chords:
C, Dm, Em, F, G, Am, Bdim
But what about finding out which scales contains a specific chord, without of course going through all the scales and seeing if the specific chord is in them.
For example, which scales contain the chord C?
I thought about using the fact that I know the degrees of the major an minor keys:
M : I, ii, iii, IV, V , vi, vii*
m: i, ii*,III, iv, v , VI, VII
So I was able to find out that the C chord is in the following scales:
C Major, G Major, F Major, A minor, E minor, D minor.
But when I tried to use this method of the B chord thing did not go as well...