The Сalls for Unison tube - V.Buyanovsky (Russian Tuba Workshop)
Russian Tuba Workshop (Moscow 27/11/2011), Pavel Umyarov - leader of the tuba septet
Russian Tuba Workshop (Moscow 27/11/2011), Pavel Umyarov - leader of the tuba septet
Russian Tuba Workshop (Moscow 27/11/2011), Pavel Umyarov - leader of the tuba septet
Russian Tuba Workshop (Moscow 27/11/2011), Pavel Umyarov - leader of the tuba septet