QUOTE(clarinetgiggirl @ Aug 12 2007, 03:01 PM)
Diminished chords are really interesting! They are lots of minor 3rds on top of each other.
Eg. The minor third for D is F
then the minor 3rd for F is Ab,
the minor 3rd for Ab is Cb, which is the same note as B
the minor third for B is D
thus, D diminished is D, F, Ab, B, D.
and so eg diminished starting on F is the same 4 notes but starting on F i.e. F, Ab, B, D, F.
Actually you only have to remember diminished 7ths starting on C, C# and D to know them all