Brown is an instrument builder, a pianist, and a composer.

In fact, later instrument builders oversimplified his original design because they thought it was too expensive.

Others argue that the city does not have as many instrument builders who specialize in early instruments as, say, Boston.

As several instrument builders made improvements to both instruments, they started to look and sound more alike.

Another son, Johann David, helped with the business but is not recorded as an instrument builder.

He has been mentor to many composers and instrument builders.

In his later years, he worked as an instrument builder, making musical instruments, binoculars, magnifying glasses, and telescopes, among others.

"I came into astronomy as an instrument builder," he said.

For the next 15 years Joachim worked as a player, teacher, instrument builder and composer.

Most of the other acoustic instruments, such as their shawms, are only made by a few other instrument builders.