Very important!!我要English Horn嘅結構！！！！！很重要！！！！

The cor anglais, or English horn, is a double reed woodwind musical
instrument in the oboe family.

Its pear-shaped bell gives it a somewhat more nasal, covered timbre than
that of the oboe.
Reeds used to play the cor anglais are similar to those used for an oboe,
comprising a piece of cane folded in two. Although the instrument itself is
longer, a cor anglais reed is shorter than that of an oboe reed, and also
slightly wider. Where the cane on an oboe reed is connected to a small metal
tube (the staple) partially covered in cork, there is no such cork on a cor
anglais reed, which fits metal against metal onto the bocal, in a manner not
dissimilar to the bassoon.