The Bach A47X features a design that was developed through extensive research to achieve a balanced resistance and improved air flow throughout the valve section. This X wrap design creates a truly even feel in and out of the valve range that extends throughout the most expansive registers. The standard Artisan rotor offers a shorter throw to provide improved transition between notes. Player comfort is enhanced with the elegant and ergonomic design of a contoured rosewood thumb rest. The 0.547" bore Artisan handslide features a brass cross brace on the inner slide and contoured waterkey, with newly designed threaded leadpipe receiver. This model includes three interchangeable brass leadpipes to allow players more options to fit their individual needs.