Bassoon double reed

The bassoon double reed is the heart of the instrument, handcrafted from Arundo donax cane and responsible for its rich, expressive tone.

About this subject

The bassoon double reed is a small yet essential component of the instrument, consisting of two blades of Arundo donax cane bound together with thread and sealed with glue or resin. This structure vibrates when the musician blows, producing the characteristic bassoon sound: a deep, slightly nasal, and highly versatile timbre. Unlike single reeds used for clarinets and saxophones, the double reed requires meticulous craftsmanship: the cane is planed, shaped, and scraped by hand to achieve the ideal thickness and profile. Each reed is unique, and small variations in the cut can dramatically transform the instrument's response, projection, and tonal color.

Historically, the modern bassoon evolved from the Renaissance dulcian and the Baroque bassoon, and its double reed has always been made from cane, though techniques have been refined over centuries. Musicians often spend hours adjusting and scraping their own reeds to suit their personal style and environmental conditions like temperature and humidity. A well-made reed allows clear notes, precise articulation, and wide dynamics; a poorly made one causes fatigue and a muffled sound. Reed making is an art form as valued as performance, with renowned manufacturers such as Rieger, Fox, and Légère offering professional models.

Interestingly, the bassoon double reed is slightly larger and wider than that of the oboe, its soprano cousin. While the oboe reed is about 7 mm wide, the bassoon reed measures approximately 13 to 15 mm. This larger size contributes to the depth and volume of the bassoon's low register. Additionally, the reed is inserted into a metal tube called a bocal, which connects to the instrument's body, and its position can be adjusted for greater or lesser resistance. In orchestral music, the bassoon often provides bass lines, lyrical solos, and comedic effects, with reed quality being fundamental to each role.

Recent acoustic research shows that the double reed's geometry directly influences the distribution of harmonics in the sound spectrum. Thicker scrapings tend to produce a darker, more opaque sound, while thinner scrapings yield brightness and clarity. Therefore, professional players maintain stocks of reeds at different wear stages and adjust them according to the piece or performance venue. The double reed is not just an accessory; it is the primary link between the musician's breath and the bassoon's voice.

Frequently Asked Questions

What material is the bassoon double reed made of?

The double reed is made from Arundo donax cane, primarily cultivated in regions of southern France, Spain, and Argentina.

Why do bassoonists make their own reeds?

Each musician has unique preferences for resistance, sound, and response. Making their own reed allows them to adjust scraping, binding, and profile to achieve the ideal timbre and playability for their style and for each piece.

What is the difference between a bassoon reed and an oboe reed?

The bassoon reed is larger and wider, measuring about 13, 15 mm in width, while the oboe reed is approximately 7 mm. This size difference contributes to the bassoon's deeper, fuller sound.