What is the hardest woodwind instrument to play?

The bassoon is often considered the hardest woodwind instrument to play due to its complex fingerings, large size, and unique double-reed system. It requires a strong embouchure and precise breath control to produce a clear and resonant sound. Additionally, the bassoon has a wide range of over three octaves, making it challenging for players to master intonation and technique throughout the instrument's register. Many musicians find it takes years of dedicated practice to become proficient on the bassoon.