GMP Live presents the inaugural North Beach Music Festival (NBMF) at Miami Beach, FL's historic open-air art deco amphitheater, the North Beach Bandshell, and in the surrounding Bandshell Park. Over December 10th and 11th, some of the modern music scene's greatest improvisational rock bands, jam bands and funk bands - including Pigeons Playing Ping Pong, Spafford, The Motet, Marco Benevento, TAUK, and longtime local scene anchors The Heavy Pets - will descend upon the Bandshell, and the adjacent Bandshell Park,…