Clarinet with improved tonal quality - diameter of bore changed in steps

摘要

A clarinet has a bore with a series of sections of different stepped diameters in which the diameter of each wider section has a considerable effect on the duodecimals associated with the lower sections. The pure tonal quality and the modulation capability and tone quality are improved, and the duodecimals corrected by the expansion of the parts of the bore over the holes of the duodecimal sections.