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The short answer: To assemble a clarinet correctly, start by putting the reed on the mouthpiece, then attach the mouthpiece to the barrel, then the upper joint, lower joint, and finally the bell, always using a twisting motion and applying cork grease. Avoid forcing parts, and never grip the keys. For more details and to find the best clarinet for your needs, check out our buying guide.
Assembling a clarinet correctly is crucial for several reasons. First, it ensures that the instrument plays in tune and responds well. Misaligned joints can cause air leaks, producing squeaks or muffled sounds. Second, proper assembly prevents damage to the delicate keys, pads, and cork. Forcing parts together can bend keys or crack the wood or plastic body. Finally, learning correct assembly habits early helps you develop a routine that protects your investment. Whether you’re a student or a hobbyist, knowing how to put your clarinet together safely is a fundamental skill.
Follow these steps in order. Always handle your clarinet with care, and if you feel resistance, stop and check for obstructions or apply more cork grease.
Find a clean, flat surface like a table or desk. Avoid carpeted floors where small parts can get lost. Have your clarinet case open, a soft cloth, and cork grease (if you have it) within reach. Before you start, gently wipe the tenons (the cork-covered ends) with a soft cloth to remove any dirt or old grease.
Take the mouthpiece and moisten the flat side of a new reed in your mouth for about 30 seconds. Place the reed flat side against the mouthpiece’s flat surface, aligning the tip of the reed with the tip of the mouthpiece. Secure it with the ligature, which is the metal or plastic screw device. Slide the ligature over the reed and mouthpiece, positioning it so the screws are on the side opposite the reed’s flat side. Tighten the screws just enough to hold the reed firmly, but don’t overtighten.
Check the cork on each tenon (the end of each joint). If it looks dry or feels tight, apply a small amount of cork grease to the cork using your finger. Rub it in thoroughly. This makes assembly easier and prevents the cork from cracking. You don’t need much, a thin layer is enough. If the cork is already greasy and slides easily, you can skip this step.
Hold the barrel (the short cylindrical piece) in your non-dominant hand, with the wider opening facing up. Hold the mouthpiece with the reed facing you, and gently push the mouthpiece’s cork-covered tenon into the barrel’s top opening. Use a slight twisting motion (like turning a doorknob) while applying gentle pressure. Twist clockwise and counterclockwise as you push. Do not force it; if it doesn’t go in, apply more grease and try again.
Now take the upper joint (the piece with a long row of keys and a bridge key) and the lower joint (the piece that flares out at the bottom). Hold the upper joint in your left hand, with the keys facing away from you. Hold the lower joint in your right hand, with the wide end down. There is a small bridge key on the upper joint that must align with a corresponding key on the lower joint. Position the upper joint so that the bridge key is on the left side of the clarinet (when looking at it as you would play). Slide the upper joint’s cork-covered tenon into the lower joint’s socket, again using a twisting motion. Make sure the bridge key is aligned and that the keys on both joints are in a straight line. If the bridge key isn’t aligned, you’ll have difficulty playing.
Finally, attach the bell (the flared piece) to the bottom of the lower joint. Hold the bell in your non-dominant hand and the lower joint in the other. Insert the lower joint’s tenon into the bell’s socket with a gentle twisting motion. Ensure it fits snugly but not too tight. Once all pieces are connected, your clarinet should be in one piece, with the mouthpiece at the top and the bell at the bottom.
Many beginners make a few common errors that can lead to damage or poor playability. Here’s what to watch out for:
Once your clarinet is assembled, do a few quick checks. First, ensure all parts are snug but not overly tight. Second, look down the bore (the inside of the tube) from the bell to the mouthpiece to make sure there are no obstructions. Third, test the bridge key alignment by pressing it gently; it should move smoothly with the corresponding key on the lower joint. If everything looks good, you’re ready to play. Remember to always disassemble your clarinet after playing and store it in its case to protect it.
Apply cork grease whenever the cork feels dry or when assembly becomes difficult. As a general rule, a thin application every few weeks is good, but it depends on humidity and how often you play. If the cork looks shiny and assembly is easy, you don’t need more.
Yes, but it’s not recommended. Cork grease reduces friction and prevents the cork from cracking or tearing. If you don’t have any, you can use a small amount of petroleum jelly in a pinch, but it’s better to use proper cork grease. Regular lubrication extends the life of the cork.
If a joint is stuck, do not force it. Gently twist it back and forth while pulling apart. If it’s still stuck, take it to a music shop for professional help. Never use pliers or other tools, as you’ll damage the instrument. Prevention is best, so always use grease and avoid leaving the clarinet assembled for long periods.
Now that you know how to assemble your clarinet, you might be considering upgrading or getting your first one. Whether you’re a student looking for a durable and affordable model or an advanced player seeking a professional instrument, choosing the right clarinet is key. To help you decide, we’ve researched the top clarinets on the market, comparing features, playability, and value. Check out our best clarinet buying guide to find the perfect match for your skill level and budget. Happy playing!
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