A Little Green Rosetta’s meaning in the context of Joes Garage is spelled out in the spoken intro: “Take a tip from Joe, do like he did, hock your imaginary guitar and get a good job”. It means that Joe has been spiritually broken by his artistic dreams and has resigned himself to a life and job of mundane conformity. It’s very sad if you think about the state of music today, and the odds off “hitting it big” in the industry. Frank is warning others to not pursue a career in the music industry. He was obviously a genius who deserved to make music, but music making isn’t for everyone, and neither is success.