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. |