Mix & Shingle: Zach John King and Aniston Pate will kick off the eighth season of BMI’s Rooftop On The Row series April 21. The invitation-only event, hosted on the rooftop of BMI's Nashville office, will feature subsequent performances by Avery Anna, Drew Baldridge, Pynk Beard, Tyler Halverson, Bryan Martin, Chase Matthew, Julianna Rankin and DJ Smoke.