Quote Originally Posted by dublo7 View Post
U gotta version where the diminished 7 chord has a flat 9? I couldn't edit it myself
... an inversion might work. I am not sure what notes you require but an example is Cdim7 with a Db (being flat 9).
You could use Ebø/C or Gbm6/C; then perhaps use the Alt chords (above the main chords) or text for the actual chord quality you want to have it shown as (so you can read it).