Bonnie Gibson says her son Greg’s musical talent emerged very early on. “I could just see from a young age that he had unusual rhythm. Which, now, I go, did I really want those drums in my basement?” she said. “But it was cute and fun to see a little kid kind of find himself.” Greg did find himself in music. By high school, he was already involved in the business side, booking bands. “I would get a phone call from somebody in, like, Chicago or something. And he had somehow, they knew his name