Mahan Esfahani and Avi Avital at the Bristol Proms This image appears in the gallery:Avi Avital and Mahan Esfahani at the Bristol Proms 9. Mahan Esfahani and Avi Avital at the Bristol Proms Mahan Esfahani and Avi Avital perform live on stage at the Bristol Proms. Photo: Andy Squire 17 images See the full gallery: Avi Avital and Mahan Esfahani at the Bristol Proms