Mroz was at Maxie's on 68th St. Monday night, playing the bass for the dinnertime crowd. “It’s part of what I do, it’s part of the way I participate in the community,” Mroz said. Last Sunday, Mroz was getting home from a show when he left his 1940 Epiphone string bass out before leaving for a family trip. Word is continuing to spread throughout the music and bass community. “With such a great community, I continue to get positive messages from people, saying, I just have a great feeling that this is going to show up,” Mroz said.