Each bar is paired with a resonator tube having a motor-driven butterfly valve at its upper end, mounted on a common shaft, which produces a tremolo or vibrato effect while spinning.
The valves are mounted on a common shaft, which produces a tremolo or vibrato effect while spinning. Each bar is paired with a resonator tube that has a motor-driven butterfly valve at its upper end.
Each bar is paired with a resonator tube that has a motor-driven butterfly valve at its upper end. The valves are mounted on a common shaft, which produces a tremolo or vibrato effect while spinning.
Each bar is paired with a resonator tube that has a motor-driven butterfly valve at its upper end. The valves are mounted on a common shaft, which produces a tremolo or vibrato effect while spinning.