The Db Diminished Arpeggio contains the following notes:
Db – Fb – Abb
It is essentially an Db minor chord, with a flat 5.
Here’s how to play the Db diminished arpeggio in the open position.
Db Diminished Arpeggio CAGED Positions
Here are the 5 CAGED positions for the Db diminished arpeggio on the guitar (notes and tabs).