_Planet Therapy (Sphere of Music)_ is an instrumental concept-album by a Japanese artist whose career apparently starts and stops with this CD. I bought this album not long after it came out and enjoyed the solar-system–themed construction and variety of music; but since then I’ve been unable to find anything else by the Harmonia. With a length of thirty-six minutes it doesn’t take long before Planet Therapy starts over, so I’d recommend it to anyone who enjoys artists like FourColor or Ametsub and wants another ‘could leave on for hours’ instrumental album to add to their collection.