I’m shifting books around in my storage unit. I hear the elevator door open down the hallway. The sound of footsteps echoes around the hallway, then the sound of a key being selected from a key ring. A lock is removed, a latch opened , and the garage-style door of one of the storage units is lifted. The visitor makes no sound for about thirty seconds. Then a piano plays. It goes through a complete song, one I don’t know. The final note is followed by a silent beat, then the door closes and the lock goes on. The visitor speaks: “It’s out of tune.” That sentence echoes around the hallway. The elevator doors whisper open and then shut, and it’s quiet again.