Hellow guys, Welcome to my website, and you are watching Владимир Сидоров. "Пять принципов для хорошо подготовленного фортепиано". Исполняет автор.. and this vIdeo is uploaded by Vlad Sidorov Piano works at 2013-08-14T03:30:12-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.