What is the English Horn made of?

The English horn is made of grenadilla wood. Grenadilla wood is a type of African Blackwood that is known for its density, hardness, and durability. These properties make it an ideal material for woodwind instruments, as it can withstand the constant vibrations and pressure of the instrument's keys and valves. Grenadilla wood also produces a rich, warm tone that is characteristic of the English horn.