I definitely believe it could be true. I don't think the music story would be out of character for Einstein. One of my academic advisors was Professor Robert

I definitely believe it could be true. I don't think the music story would be out of character for Einstein. One of my academic advisors was Professor Robert Borkenstein (he invented the breathalyzer, among other things.) Before he got into academia, he had worked as a police captain and forensics advisor to various organizations, including the International Association of Chiefs of Police. I was visiting Borkenstein's office once, long after he became a Professor Emeritus, and I commented on some artwork he had on the wall. I was really just making small-talk out of nervousness, and I hadn't really even looked at the drawings beyond a quick glance. Borkenstein perked up and asked me to really examine the drawings, and tell him what I thought about them. They were just sketches and doodles, mostly...nothing elaborate. I was going to just say they were 'nice" out of courtesy, when I realized a few of them were signed...by Albert Einstein. It turned out that Borkenstein had worked as a guard for Einstein and some of the other scientists involved in the US nuclear efforts when he was younger. He wasn't supposed to interact with any of them, he was just there to help insure their protection. One day, Bob was so curious about the mechanics of something they were discussing that he forgot his place and asked a question. Einstein apparently spent quite a bit of time explaining the confusing concept, and became fond of Bob and his curiosity. He recognized that Bob had a very inventive mind and apparently wanted to encourage it, so whenever Bob worked a shift, Einstein would chat with him. Einstein had drawn most of the sketches on the wall to explain various concepts, although some of them were just absent-minded sketches. He let Bob keep them when the protection detail ended. The sketches meant a great deal to Bob, and I think he had kept them somewhere in his office for his entire career. I also think the sketches (and personal attention from Einstein) helped provide some of the impetus for Bob's inventing career. Unfortunately, I don't recall all of the details Bob gave when telling his story about the Einstein discussions, but I remember that he was very reverential, awed that Einstein had taken the time to discuss important things with a guard. I think Einstein was genuinely fascinated with how other people view the world...and they say a new perspective is worth XXX IQ points, right?