Saxophone Bis Key: Design and Usefulness

What is the bis key?

The bis key is a small lever on the left hand side of the saxophone, just above the B key. It is used to produce the note Bb (B flat) by pressing it together with the B key. In standard fingering, Bb is played with the side key, but the bis key offers an alternative that can be more convenient in certain musical contexts.

The name 'bis' comes from the French word for 'again' or 'second', reflecting that it is a secondary way to play the same note. On many saxophones, the bis key is integrated into the left hand table, the cluster of keys operated by the left index finger. Its placement allows the player to slide the finger from the B key to the bis key without lifting the hand.

Not all saxophones have a bis key. Student models often include it as a standard feature, but some intermediate or professional models may omit it to simplify the mechanism. When reading a listing, look for 'bis key' or 'high F# key' as indicators of the keywork. The presence of a bis key is a stated detail that can be compared across models. For a first instrument, a student saxophone with a bis key can make early lessons smoother.

Design variations of the bis key

The bis key design varies between manufacturers and models. The most common design is a flat, rectangular lever that sits close to the B key, allowing the left index finger to roll from one to the other. Some designs have a slight curve or a raised edge to make the transition smoother.

On some saxophones, the bis key is adjustable. A small screw allows the player to change the height of the key, customizing it to their hand size and playing style. This adjustability is more common on intermediate and professional models, where players may have specific ergonomic preferences. If you are upgrading, an intermediate saxophone with an adjustable bis key can be a good fit.

Another variation is the shape of the key itself. Some bis keys are wider, providing a larger target for the finger, while others are narrower to reduce the risk of accidentally pressing adjacent keys. The material of the key, usually brass or nickel silver, can also affect the feel, though this is not often stated in listings.

The position of the bis key relative to the B key is crucial. If it is too far, the finger must stretch; if too close, it may interfere with the B key. Manufacturers design the placement to balance these factors, but individual hand anatomy can make one design more comfortable than another.

When the bis key aids playing

The bis key is particularly useful in fast passages that alternate between B and Bb. Using the bis key allows the left index finger to slide between the two keys without lifting, which can be faster and more fluid than moving to the side key. This is common in scales, arpeggios, and technical exercises.

In certain keys, such as F major or D minor, Bb appears frequently. The bis key reduces the hand movement needed, making these passages feel more natural. For beginners, learning the bis key fingering early can simplify the transition from B to Bb, as it keeps the hand in a stable position.

However, the bis key is not always the best choice. In some musical contexts, the side key produces a more consistent tone or is required for alternate fingerings. The choice between bis and side key often depends on the musical phrase and the player's preference. The bis key is a tool, not a replacement for the side key.

For players with smaller hands, the bis key can be a comfort feature. It reduces the stretch needed to reach the side key, which can be a relief during long practice sessions. But for others, the side key may feel more natural. The usefulness of the bis key is subjective and depends on the individual.

Checking listings for the bis key

When comparing saxophones, the bis key is a detail you can check in the listing. Look for phrases like 'bis key', 'high F# key', or 'left hand table' in the specifications. Some listings may not mention it explicitly, but you can often infer its presence from the model's level or brand.

For example, student saxophones from brands like Yamaha or Jupiter typically include a bis key as part of their standard keywork. Professional models may also have it, but some high-end designs omit it to reduce weight or complexity. If the listing does not state it, you can contact the seller to ask, though the site's guides compare stated details only.

The bis key is just one of many keys on a saxophone. When reading a listing, consider the overall keywork: the number of keys, the presence of a high F# key, and the type of key posts. These details together give a picture of the instrument's design and level. For a complete setup, a saxophone kit often includes a model with a bis key.

For a first saxophone, a bis key is a useful feature to have. It simplifies early Bb fingerings and can make learning more comfortable. If you are choosing between two similar models, the presence of a bis key might tip the balance, but it is not the only factor to consider. Compare saxophone reviews on stated details to see which models include it.

What to pick for your situation

The bis key is a small but meaningful detail. For a beginner, a saxophone with a bis key can make the first months easier. For an advancing player, the design and adjustability of the bis key might matter more. Use the guides to compare models on stated details, including the presence of a bis key.

If you are buying a kit, check whether the included accessories and the saxophone itself have the features you need. The bis key is part of the instrument, not the kit, so it will be listed in the saxophone's specifications, not the accessories list.

Remember that the bis key is not a measure of quality. A saxophone without a bis key can still be excellent. The key is to match the instrument to your playing needs and preferences. The guides below can help you narrow down your options based on the details that matter to you.

What to pick for your situation

Questions

What is the bis key on a saxophone?

The bis key is a small lever on the left hand that allows you to play Bb by pressing it with the B key, offering an alternative to the side key.

Do all saxophones have a bis key?

No, not all saxophones have a bis key. It is common on student models but may be omitted on some professional models. Check the listing for this detail.

Is the bis key better than the side key for Bb?

It depends on the musical context. The bis key can be faster for certain passages, but the side key may be preferred for others. Both are valid fingerings.

Can I adjust the bis key on my saxophone?

Some saxophones have an adjustable bis key, allowing you to change its height with a screw. This is more common on intermediate and professional models.