Nearly every sector of the American wind instrument industry has had contact with the "C.G. Conn Company". Charles Girard Conn was an extraordinarily talented entrepreneur who began manufacturing his patented rubber-edged trumpet mouthpiece in 1875 and made it the world's largest manufacturer of wind instruments in 1905.
In 1919, Bach rented a small room at 204E 85th New York, bought a lathe for $300, and began making one mouthpiece a day between his performances. His most important innovation was to develop a complete series of mouthpieces based on a logical numbering of cup and bore sizes.
Vincent Bach was born in 1890 as Vincenz Schrotenbach in Baden, near Vienna. He grew up in a household in which singing and theatre productions were regular leisure activities. He began taking violin lessons at the age of six. But he soon played truant and finally stopped completely. The reason he gave was: "If I held the bow wrongly, I felt the teacher's heavy cane on my hand.
Some trumpeters play a mouthpiece for decades, or even their entire lives. Some change the small cup quarterly on the feverish hunt for more tone, stamina or height. But most of them probably change after years because they have changed themselves. But there is also a fourth possibility ...