I am a musician in training and being I do not understand the applications of having perfect pitch in terms of hearing a naming a sound with a reference, I decided to try out one of the online products. I decided on this product only because it came with a 60 day money back. After a week and a half an 10 hours I knew this was not going to produce any results. I email the seller and explain my situation and asked for my refund. No reply. I waited for a few days and decided to post a complaint with paypal. Still no response so I will chalk... read full review »