Saxophone Bell Keys: How They Open and Close

What the bell keys are

The bell is the flared section at the end of the saxophone body. It carries the largest tone holes on the instrument, and the keys that open and close those holes are called the bell keys. On most saxophones these are the B, Bb, and C# keys, named for the notes they produce. On a baritone saxophone, a low A key takes the same place, because the instrument reaches one note lower than the other members of the family.

You will see these names on a listing when the seller states the key work. A model that carries all of them is described as having a standard set of bell keys, while a baritone may add a low A. The article on key count by model explains how these names appear across soprano, alto, tenor and baritone listings.

• The B key, named for the note B.
• The Bb key, named for the note B flat.
• The C# key, named for the note C sharp.

How the bell keys open and close

The bell keys are not pressed directly. A small lever sits where the player's left hand little finger can reach it, and that lever connects to a rod running along the body toward the bell. When you press the lever, the rod rotates, a key cup lifts, and the pad rises off the tone hole. When you release it, a spring returns the key so the pad sits back over the hole.

That sequence is the same on every saxophone, but the bell keys are the largest in the mechanism, and their pads cover the widest openings. The key work check article explains how a buyer can read the key work from a listing without playing the instrument.

The Bb key has a shared lever on many models: one left hand little finger can open the Bb hole, and the same lever, pressed further, opens the B hole as well. That arrangement is covered in detail in the low Bb key mechanism article.

Where the bell keys sit

On an alto or tenor saxophone, the bell curves away at the bottom of the body, and the bell keys sit on that curve. The levers are grouped so the left hand little finger can reach all of them without the hand moving. On a straight soprano, the bell is a straight continuation of the body, and on a curved soprano the bell turns up, which changes how the keys sit. The straight versus curved soprano article shows the difference.

The position matters when you read a listing, because a photo of the bell from one side will not show every lever. A useful listing shows the bell from more than one angle, or names the bell keys in the bullet list.

Reading bell keys on a listing

When a listing names the key work, the bell keys appear as part of that description. You may see the phrase 'high F# key' in the same sentence, but the high F# key is not a bell key. It sits higher on the body and opens a vent in the upper section. The high F sharp key article explains what that key does.

If the listing names the register, the finish and the kit but says nothing about the bell keys, that is a missing detail. You can ask the seller which bell keys the model carries, and whether a baritone model includes the low A. The guide to reading specifications gives a checklist for the rest of the listing.

What to look for in images

Images are part of a listing, and they let you see the bell keys without touching the instrument. Look for a photo that shows the bell section from the side, so the rods, levers and key cups are visible. A listing with several angles of the bell is more informative than one with a single front view.

When neither the images nor the text state the bell keys, ask the seller before you decide. For a first instrument, a listing that states the key work is easier to compare than one that leaves it out. The specifications article covers how to weigh missing details.

The finish also affects how the bell keys appear in photos. A lacquered body reflects light differently than a black or silver plated finish, so the rods and pads can be harder to read in a small image. The finish article explains what each finish name means on a listing.

Bell keys and the level word

A student model and a professional model both carry the bell keys; the difference between them is stated elsewhere in the listing, such as the level word, the finish, or the kit contents. When a listing calls a model 'student' or 'professional', that word describes the seller's classification, not the number of keys. The student saxophone guide and the professional saxophone guide explain how those level words are used.

What the catalogue cannot tell you

A listing tells you that the keys exist; it does not tell you how they respond or how well the pads seal. This site compares saxophones on stated details only: the register, the level word, the finish, and what the kit includes. For a first instrument, choose a model with its level stated and a kit that includes a case and mouthpiece, as in the saxophone kit guide.

If you are choosing between two models, the bell keys are one line of the specification, not the whole decision. The register comes first, then the level word, then the kit. The buying guide for student saxophones explains how to weigh those details for a beginner.

What to pick for your situation

Questions

Are the bell keys the same on every saxophone?

No. Alto and tenor saxophones carry B, Bb and C# bell keys, and a baritone often adds a low A. A listing should name them if the seller states the key work.

Is a high F# key a bell key?

No. The high F# key sits higher on the body and opens a vent in the upper section. It belongs to a different part of the key work, as explained in the high F sharp key article.

Why does the bell have the largest tone holes?

The wider the tone hole, the lower the note it produces. The bell carries the lowest notes of the instrument, so its holes are the widest, and the pads on the bell keys are the largest on the saxophone.

What should I ask the seller about the bell keys?

Ask which bell keys the model carries, whether a baritone includes a low A, and what the kit contains. The answer tells you what the listing did not state.

Does a curved soprano have bell keys in the same place?

A curved soprano carries the same bell keys as a straight soprano, but the bell is shaped differently. The straight versus curved soprano article discusses how the shape changes the position of the parts.