You know the sound of the Theremin, even if you’ve never seen one. It’s the musical instrument that’s famous for that spooky sound in 50’s sci-fi movies… This is a documentary about the instrument, it’s inventor (Leon Theremin), and it’s most famous virtuoso, Clara Rockmore. Thankfully, the documentary was made just before some of the key players died. I was really impressed to hear & see Clara Rockmore play the Theremin with a serious, professional attitude & skill. I guess it’s proof that the beauty of music isn’t in the way the music is created, but in how it’s played and heard.