Organ Music

We have an electric organ. It's in my bedroom. I thought I heard my 15 year old playing it. Clear as a bell. Multiple parts, petals and all. Except when I leave the room I was in he was nowhere to be found! I'd thought he'd come home Frome school and begun playing in the distance. My daughter said no, he wasn't even home. And he still isn't. This was much more clear than the music in the shower earlier. But just as interesting and ornate.