I think you suffer from schizophrenia, or some other mental instability. Someone definitely has a problem, when every time, they point towards sex being the catalyst or culprit. A guitar or a drum has never made me react sexually. I feel no arousal when a keyboard is playing. You are border-line obsessive. Is there an underlying problem. Do you need to go forward. I picture everything that you post on this site, written all over the walls of your bedroom. Get help.