2011RA
* BBb-Tuba
* “Gravity” model
* 1/2 size
* 4 rotary action valves
* bore: 18,5mm / .728˝
* 4th valve 19,5mm / .768˝
* bell Ø: 44cm / 17.3˝
* height: 91cm / 35.8˝
* gold brass leadpipe
* yellow brass
* clear-lacquered
Hartmut Müller
Principal tuba with the Wuppertaler Sinfonieorchester