The Bb Minor 7 b5 (B Flat Half  Diminished) Arpeggio contains the following notes:

Bb – Db – Fb – Ab

Open Position

Here’s how to play the Bbm7b5 arpeggio in the open position.

https://onlineguitarbooks.com/?attachment_id=6235

Minor7b5-Arpeggio-Notes-Key-Bb-Pos-Open-Shape-0

B Flat Minor 7 Flat 5 Arpeggio CAGED Positions

Here are the 5 CAGED positions for the Bbm7b5 arpeggio (notes and tabs).

2nd Position (lowest fret is 2):

Minor7b5-Arpeggio-Frets-Key-Bb-Pos-2-Shape-5
Minor7b5-Arpeggio-Notes-Key-Bb-Pos-2-Shape-5

6th Position (lowest fret is 6):

Minor7b5-Arpeggio-Frets-Key-Bb-Pos-6-Shape-1
Minor7b5-Arpeggio-Notes-Key-Bb-Pos-6-Shape-1

8th Position (lowest fret is 8):

Minor7b5-Arpeggio-Frets-Key-Bb-Pos-8-Shape-2
Minor7b5-Arpeggio-Notes-Key-Bb-Pos-8-Shape-2

11th Position (lowest fret is 11):

Minor7b5-Arpeggio-Frets-Key-Bb-Pos-11-Shape-3
Minor7b5-Arpeggio-Notes-Key-Bb-Pos-11-Shape-3

12th position (lowest fret is 12):

Minor7b5-Arpeggio-Frets-Key-Bb-Pos-12-Shape-4
Minor7b5-Arpeggio-Notes-Key-Bb-Pos-12-Shape-4

Further Reading:

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