Just wondering what people think are reasonable hours to practice the piano? Newish door neighbour is clearly very talented but practices the piano at any time from around 6am until 11pm - this goes on for at least an hour at a time, including weekends. We live in an Edwardian terrace with thick walls but can still hear him. AIBU to think this is taking the piss and suggest he practice between 9am and 9pm?