Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I apologize for my earlier review

"Music for Peace of Mind" is my favorite CD in this set. It is interesting, and creative. "This Room is My Castle of Quiet" really caught my attention.The other Two discs, "Perfume Set to Music" and "Music Out of the Moon", arranged by Les Baxter, have gotten better with each listening, at first, I didn't like them at all, now I do.There is another early electronic musical instrument on these recordings. I find it fascinating also. It is the Hammond Novachord (probably the first synthesizer). You have to listen very close to find it in the music. The Novachord blends in very well.I find the Theremin has a beautiful singing type voice, slightly out of tune, and very interesting.If you love the Theremin, listen to this set.