14.17What is C♯°7?

Starting on C♯:

C♯

• minor third = E

• minor third = G

• minor third = B♭

So:

C♯°7 = C♯ E G B♭

Then resolve to Dm:

D F A

Notice:

C♯ → D

E → F

G → F or A

B♭ → A

Lots of semitone motion.