when I was diagnosed with multiple sclerosis I happen to stumble on this instrument! A Feel tone monochord! let me tell you all about it in this little story… It helps me to feel better with the frequencies of 432 Hz. After all I'm a Sound Healer that has studied and practice Reiki healing. Do I feel better with multiple sclerosis? Absolutely to the point that I now call myself MS rObi:-) I feel pretty good despite my nervous systems distracting behavior. I make podcast and talk a lot to keep myself moving forward and maybe help somebody else laugh too