Quality brass mouthpieces contribute to the high regard Yamaha has earned among beginning and professional musicians alike. The result of a special approach to design and manufacture, Yamaha mouthpieces deliver the performance and comfort required where they are needed most: where instrument meets musician.

The mouthpiece production technique used by Yamaha promises consistent quality mouthpieces, time after time. Other manufacturers use a specific cutting tool to create every mouthpiece, which causes problems as tools start to wear. This can result in inconsistent quality and poor performance. Yamaha's computer-aided design system and computer controlled lathe work together to produce the most precise, consistent mouthpieces in the world.

Standard Cornet Mouthpieces (Short Shank)—Specifications
Model	Rim			Cup Depth	Throat	Backbore	Playing Characteristics
	Inner Diameter	Contour	Thickness
7D4d	16.24	semi-flat	thick	semi-deep	4.1	semi-wide	Small inner rim diameter. Flat and wide for extended endurance. Bright, round tone. Outstanding high tones.
8D2	16.36	semi-round	standard	semi-deep	4.1	wide	Small inner rim diameter with a relatively deep cup. Soft yet lyrical tone that is excellent for playing in the high range.
9E	16.44	standard	standard	deep	4.5	semi-wide	Appealing "British-style" soft tone. Medium rim and deep cup for easy playability over a wide range.
11C4	16.46	semi-flat	standard	standard	3.65	semi-narrow	Easy high register. Ideal for beginners. Same rim and cup configuration as the 11C4 trumpet model.
11E4	16.46	semi-flat	standard	deep	4.2	standard	The standard British-style cornet mouthpiece. Exceptionally flexible for a wide range of styles.
13E4	16.7	semi-flat	standard	deep	4.5	standard	Slightly larger inner rim diameter than the 11E4 for a richer, heavier tone. Deep "V" cup delivers traditional soft cornet tone.
14E	16.86	standard	standard	deep	3.98	standard	Slightly smaller inner rim diameter than the 16E. Beautiful soft tone. Centered tone and outstanding stability over the instrument's full range.
16E	17.06	standard	standard	deep	3.98	standard	Popular with top British players. Unique configuration with a fairly thin rim facilitates advanced playing techniques.