Trumpet with improved features and methods for making same

A trumpet, comprising:

• a receiver assembly;
• a leadpipe assembly coupled to said receiver assembly;
• a tuning slide assembly coupled to said leadpipe assembly;
• a valve cluster assembly;
• a bell assembly including a stem, a bend and a rim;
• transition elements having respective wide ends and respective narrow ends and joining said bell assembly to said valve cluster assembly and joining said valve cluster assembly to said tuning slide assembly;
• wherein said receiver assembly has means for receiving a mouthpiece at a proximal end of said receiver assembly, and wherein said receiver assembly is configured to receive said leadpipe assembly at a distal end of said receiver assembly;
• wherein said receiver assembly includes a transition region configured to eliminate mathematical discontinuities in said receiver assembly;
• wherein said leadpipe assembly includes a region with a tapered radius, proximal said receiver assembly, and a region with a constant radius proximal said tuning slide assembly;
• wherein said tuning slide assembly comprises a proximal end configured to envelop said leadpipe assembly, and a distal end configured to be enveloped by piping leading into one of said transition elements;
• wherein said tuning slide assembly comprises a crook with a circular cross-sectional shape and a centerline comprising three tangent circular arcs in succession;
• wherein said transition elements include walls having wall shapes that includes two tangent circular arcs joining said respective wide ends to said respective narrow ends;
• wherein a first transition element and a second transition element connect to said valve cluster assembly at said respective narrow ends of said transition elements;
• wherein said valve cluster assembly includes a first valve comprising a first piston and cylinder arrangement, a first valve slide, and a first button configured to operate said first valve, wherein said first valve comprises a first circular cross-sectional port having a straight centerline, a second circular cross-sectional port having a circular arc centerline and leading into said first valve slide at a first end of said first valve slide, and a third circular cross-sectional port having a centerline composed of multiple tangent circular arcs and coupled to the other end of said first valve slide;
• wherein said valve cluster assembly includes a second valve comprising a second piston and cylinder arrangement, a second valve slide, and a second button configured to operate said second valve, wherein said second valve comprises a fourth circular cross-sectional port having a straight centerline, a fifth circular cross-sectional port having a circular arc centerline and leading into said second valve slide at a first end of said second valve slide, and a sixth circular cross-sectional port having a centerline composed of multiple tangent circular arcs and coupled to the other end of said second valve slide;
• wherein said valve cluster assembly includes a third valve comprising a third piston and cylinder arrangement, a third valve slide, and a third button configured to operate said third valve, wherein said third valve comprises a seventh circular cross-sectional port having a straight centerline, an eighth circular cross-sectional port having a circular arc centerline and leading into said third valve slide at a first end of said third valve slide, and a ninth circular cross-sectional port having a centerline composed of multiple tangent circular arcs and coupled to the other end of said third valve slide;
• wherein said first valve slide has a length chosen to lower the default pitch of the trumpet by two semitones when said first button is pressed;
• wherein said second valve slide has a length chosen to lower the default pitch of the trumpet by one semitone when said second button is pressed;
• wherein said bend has a circular arc inside wall shape;
• wherein said bell assembly has a modified Bessel horn shape;
• wherein said bell assembly includes a plurality of perturbations applied to the inside wall shape thereof and configured to correct second through sixteenth resonances of said trumpet;
• wherein said bell assembly includes a flare shape correction configured to correct the harmonics of said trumpet;
• wherein said rim comprises a raised bell bead and a fillet radius leading into said bell bead, said bell bead being contiguous with the rest of said bell assembly.