The Bb Dominant 7 Arpeggio contains the following notes:

Bb – D – F – Ab

Open Position

Here’s how to play the B flat dominant 7 arpeggio in the open position.

Dominant7-Arpeggio-Frets-Key-Bb-Pos-Open-Shape-0
Dominant7-Arpeggio-Notes-Key-Bb-Pos-Open-Shape-0

Bb Dominant 7 Arpeggio CAGED Positions

Here are the 5 CAGED positions for the B flat 7 arpeggio on the guitar (notes and tabs).

3rd Position (lowest fret is 3):

Dominant7-Arpeggio-Frets-Key-Bb-Pos-3-Shape-5
Dominant7-Arpeggio-Notes-Key-Bb-Pos-3-Shape-5

5th Position (lowest fret is 5):

Dominant7-Arpeggio-Frets-Key-Bb-Pos-5-Shape-1
Dominant7-Arpeggio-Notes-Key-Bb-Pos-5-Shape-1

6th Position (lowest fret is 6):

Dominant7-Arpeggio-Frets-Key-Bb-Pos-6-Shape-2

Dominant7-Arpeggio-Notes-Key-Bb-Pos-6-Shape-2

10th Position (lowest fret is 10):

Dominant7-Arpeggio-Frets-Key-Bb-Pos-10-Shape-3
Dominant7-Arpeggio-Notes-Key-Bb-Pos-10-Shape-3

12th Position (lowest fret is 12):

Dominant7-Arpeggio-Frets-Key-Bb-Pos-12-Shape-4
Dominant7-Arpeggio-Notes-Key-Bb-Pos-12-Shape-4

Further Reading:

guitar course pic yellow