(back to topic?)
1770: Anthon Weidinger, of Vienna, invents the keyed trumpet. Said to have sounded like a "Demented Oboe... despite Haydn's efforts, the keyed trumpet had no real success- the explanation may be that the holes detracted from the brilliant tone of the instrument.â€
1810: Joseph Halliday of Dublin, Ireland, invents the keyed bugle, based on the keyed trumpet. The Ophicleide followed in 1821, again from his hands.
1846: Adolphe Sax invents the saxophone. (He was an instrument maker, flautist, and clarinetist.)