C#11b9 or Db11b9 | C# or Db Dominant 11th b9

C#11b9, C#7 sus4(b9) or Db11b9, Db7 sus4(b9)

Name: C# or Db dominant 11th b9
Symbols: C#11b9, C#7 sus4(b9) or Db11b9, Db7 sus4(b9)
Steps: C#-G#-B♮-D♮-F# or Db-Ab-Cb-Ebb-Gb

1. position:

2. position:

3. position: