7. C Diminished Chord Tree part 1

(Whole Tone-Half Tone)

When you check out the C Diminished Chord Tree part 1 you’ll soon discover that the humble dim chord can easily become a pretty cool sound when you start playing around with the notes shown in the green canopy.

Notating WT-HT diminished symbols with added tensions (here shown as C Diminished & added tensions) can get out of hand (as touched on before). 1 or 2 added notes is manageable but when it gets to 3 & 4 a compromise is in order.
I suggest either write them out or try the B°7 over C°7 method. The “over” part must be a horizontal line not a slash.

Color codes for chord trees
C Diminished Chord Tree part 1