The chalumeau, a precursor to the clarinet, had a cylindrical bore and a limited range.

chalumeau 是单簧管的前身，它有一个圆柱形的孔和有限的音域。

Origins and Development: The clarinet traces its origins back to the chalumeau, a single-reed instrument from the late Renaissance and Baroque periods.

起源和发展：单簧管的起源可以追溯到 chalumeau，一种来自文艺复兴晚期和巴洛克时期的单簧管乐器。

In the early 8th century, Johann Christoph Denner, a German instrument maker, improved the chalumeau by adding a register key, enabling the instrument to produce higher notes.

8 世纪初，德国乐器制造商 Johann Christoph Denner 通过添加注册键改进了 chalumeau，使乐器能够发出更高的音符。