The E Minor 7 b5 (A Half Diminished) Arpeggio contains the following notes:
E – G – Bb – D
Here’s how to play the Em7b5 arpeggio in the open position.
E Minor 7 Flat 5 Arpeggio CAGED Positions
Here are the 5 CAGED positions for the Em7b5 arpeggio (notes and tabs).