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Single-reed instruments

Alto clarinet

The alto clarinet is a member of the single-reed instruments (Hornbostel–Sachs 422.211.2). Its invention is credited to Iwan Müller. Learn how it makes its sound and explore related instruments.

How the alto clarinet makes its sound

In the Hornbostel–Sachs system, which classifies instruments by how they produce sound, the alto clarinet belongs to the single-reed instruments: a single reed beats against a mouthpiece – clarinets and saxophones.

More broadly it is one of the aerophones (wind instruments), where sound comes from vibrating air.

Press play above and watch the spectrum: the evenly spaced peaks are harmonics, and their relative strength is what gives the instrument its character.

From Wikipedia

The alto clarinet is a woodwind instrument of the clarinet family. It is a transposing instrument pitched in the key of E♭, though instruments in F have been made. In size it lies between the soprano clarinet and the bass clarinet. It bears a greater resemblance to the bass clarinet in that it typically has a straight body (made of grenadilla or other wood, hard rubber, or plastic), but a curved neck and bell made of metal. All-metal alto clarinets also exist. In appearance it strongly resembles the basset horn, but usually differs in three respects: it is pitched a whole step lower, it lacks an extended lower range, and it has a wider bore than many basset horns.

Other single-reed instruments

Frequently asked questions

What does an alto clarinet sound like?

As one of the single-reed instruments, its sound comes from the way a single reed beats against a mouthpiece.

What type of instrument is the alto clarinet?

It is classified as single-reed instruments (Hornbostel–Sachs 422.211.2).

Sources & credits