Merlefest My pal Matt Mangano and his friend just before they hit the stage with the Zac Brown Band. May 9, 2010 Tags Andrew Talbert Matt Mangano Merlefest Peterson Tuner Zac Brown I had just finished helping Matt setup his bass rig to play with Zac Brown. I was impressed with his Peterson stomp box strobe tuner which is just like the one I have at home. We were hamming it up and having fun.