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Clarinet article

Common Clarinet Mistakes to Avoid

Most clarinet problems come from the same handful of avoidable mistakes — forced assembly, no post-playing swab, avoiding the break and using a reed that is too hard.

Common Clarinet Mistakes to Avoid

Incorrect Assembly

The most damaging single action a clarinet player can perform is forcing the joints together without sufficient cork grease, or forcing them in the wrong direction. The cork on the barrel and between the upper and lower joints should be lightly greased before assembly — this protects the cork from drying and cracking and allows the joints to twist together smoothly. Always twist gently — applying rotational force rather than pushing straight in — and never force a joint that resists. A joint that sticks has either dry cork or an obstruction that needs to be investigated before forcing it can cause damage.

Neglecting the Swab After Playing

Moisture accumulates inside the clarinet during playing — in the bore, in the tone holes and against the pads. Not swabbing the instrument after each session is the most common cause of sticky keys and pad deterioration. A pull-through swab drawn through each section of the clarinet removes the bulk of the moisture. The mouthpiece should also be cleaned — either swabbed or rinsed — to prevent bacterial buildup. Players who consistently swab after playing will find their clarinet requires servicing far less frequently and their pads last significantly longer.

Practising Through the Break Without Isolating It

The register break — the transition from the chalumeau to the clarion register — is the most common technical hurdle for clarinet students. The mistake is to practise scales and pieces at full speed, glossing over the break whenever it is awkward, and hoping it will improve through repetition. It does not. The effective approach is to isolate the break: play slow scales that cross it deliberately, repeat the crossing repeatedly in isolation, and identify which specific notes cause problems. Only consistent, deliberate practice at the transition point smooths the break reliably.

Using Too Hard a Reed

Advancing too quickly to a harder reed is a very common mistake among clarinet players who associate harder reeds with a more mature sound. A reed that is too hard for the player's embouchure causes biting — pressing too hard with the lower jaw — which produces a thin, strangled tone and builds muscle fatigue quickly. The correct reed strength for a player is the hardest reed they can play comfortably for a full practice session without tightening the embouchure. Most students progress through strengths 2 to 3.5 over two to three years; the progression should follow embouchure strength, not ambition.

Inconsistent Reed Rotation

Playing a single reed until it deteriorates, rather than rotating through a small set, produces inconsistent results and masks tonal problems that are actually reed-related rather than technique-related. A player who rotates four to six reeds — marking each one and using them in sequence — has a clearer picture of which reeds are worn and which are performing well. This also prevents over-dependence on a single "good" reed, which eventually wears and leaves the player without a usable alternative.

Skipping Regular Servicing

The clarinet mechanism — pads, springs and key alignment — needs periodic professional servicing to maintain consistent playability. Pads that have hardened or distorted no longer seal tone holes cleanly, which causes notes to sound flat, unfocused or simply fail to respond. Skipping servicing and instead adjusting technique to compensate for the instrument's mechanical deficiencies is a mistake that holds back development. Annual or biennial servicing by a qualified woodwind technician costs far less than replacing deteriorated pads after extended neglect, and maintains the instrument in a condition that supports rather than hinders the player's progress.

Frequently Asked Questions

How often should a clarinet be professionally serviced?

Annually for a regularly played instrument is the standard recommendation. A student who plays daily through a school year will typically need a service each summer before the next academic year begins. Professional players often service more frequently. Signs that servicing is overdue include sticky keys, notes that cipher or fail to respond cleanly, and pads that feel soft or uneven when pressed.

Why does my clarinet squeak?

Squeaking is most commonly caused by too much pressure from the lower jaw on the reed (biting), a damaged or poorly positioned reed, or an embouchure that is not sealing correctly at the sides of the mouthpiece. Check the reed position first — the flat surface should align flush with the mouthpiece table and the tip should align with the mouthpiece tip. If the reed position is correct, the embouchure is the next thing to assess.

What happens if I do not swab my clarinet after playing?

Moisture accumulates in the bore and against the pads. Over time, this causes pads to soften and distort — they no longer seal tone holes evenly, which affects intonation and note response. Keys become sticky as moisture interacts with the mechanisms. Regular swabbing after every session prevents these problems and significantly extends the interval between professional services.

Is it bad to bite the reed?

Yes. Biting — pressing down with the lower jaw rather than supporting from the embouchure muscles — produces a thin, strained tone, muffles the lower register and causes fatigue quickly. It is one of the most common embouchure problems and tends to develop when a player uses a reed that is too hard for their current strength. The solution is to return to a softer reed and rebuild the embouchure from a relaxed position.

How do I stop keys from sticking on my clarinet?

Sticking keys are almost always caused by moisture under the pad. After playing, passing a small piece of cigarette paper between the pad and the tone hole and gently pressing the key will absorb residual moisture. Regular swabbing of the bore reduces the source of the problem. If sticking persists despite regular cleaning, the pad may have distorted and require replacement by a technician.

Should I oil the bore of my clarinet?

Only if the bore is grenadilla wood. A grenadilla bore can dry and crack if not periodically oiled — especially in heated rooms with low humidity. Bore oil, applied sparingly to a swab and drawn through the instrument every few months, prevents drying. Do not oil a plastic or hard rubber bore — it is not necessary and can affect the pads. Apply oil only to the bore, not to the key mechanism or pads.

About Louise Watson

Louise grew up in Plymouth, a naval city with a long tradition of brass and marching bands, and that early exposure gave her a lasting love of ensemble playing. She's fascinated by the instruments most pop fans overlook. She writes about brass, wind and orchestral instruments.

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