The difference between C7 and Gmaj, and others

[Phil Smith]

Originally posted by Pacman


Actually FUGHORN, D# would have 8 sharps, not 7. C# has 7 sharps, which makes the key of D# a thoretical key.


Not often you get to correct the master.

Okay, wouldn't a D# major scale be the following:

D# E# Fx G# A# B# Cx D#

Where x = double sharp.

Would it then be correct to say that the key signature would have 5 sharps and 2 double sharps for a total of 9 as opposed to 8?

 

[jazzbo]

Originally posted by Phil Smith


Okay, wouldn't a D# major scale be the following:

D# E# Fx G# A# B# Cx D#

Where x = double sharp.

Would it then be correct to say that the key signature would have 5 sharps and 2 double sharps for a total of 9 as opposed to 8?

So then, wouldn't it have 9 sharps? What about G# major? G#-A#-B#-C#-D#-E#-Fx-G#. See, that would have 8 sharps.