Every beginning clarinetist makes mistakes. That's completely normal, and it's part of learning. But some mistakes are so common that I see them come up over and over again with students at every level, and a lot of them are completely avoidable once you know what to look for.
Here are the ten most common clarinet mistakes beginners make, and how to fix every single one of them. These aren't ranked in any particular order, but they're all things worth keeping on your radar as you practice.
Cork grease should be used as needed, not as a daily routine. If you listen closely to a dry cork, you can sometimes actually hear a little cracking or squeaking sound when the joint moves. That's your signal that some cork grease is warranted.
When you do apply it, a tiny amount is all you need, about as little as you'd use from a chapstick. Apply it sparingly around the cork and then rub it in with your fingers. That rubbing step is the one most people skip, and it's important because it works off any excess and distributes the grease evenly. Too much cork grease left sitting on the surface can actually damage the cork over time.
This one seems obvious, but broken equipment is often harder to spot than you'd think. There are three things to check regularly:
The ligature only needs to be tightened until it stops on its own. You never need to crank it down. Remember that the sound on a clarinet comes from the reed vibrating, and if you clamp the ligature down too tight, you're restricting that vibration.
Snug enough that the reed isn't sliding around is exactly right. Beyond that, you're working against yourself.
These are actually two opposite problems, but they're both worth knowing about.
A few specific things to watch for here:
Reeds wear out. Every player knows that feeling of a reed that used to sound great and now just sounds flat and dull. The good news is that you can dramatically extend the life of your reeds by rotating them.
My recommendation is to keep at least four reeds in your case. Play one reed per session, then let it rest while you rotate to the next. Giving reeds time to dry out and rest against a flat surface keeps them in much better shape. A reed you play every single day for a week will be dead by the end of that week. The same reed, played one session per week on rotation, might last you a month or two.
Not all reeds in a box are equal. Even within the same brand and strength, you'll get some great reeds, some okay reeds, and some that just aren't going to work. If you're having a rough practice and nothing feels right, try swapping your reed before assuming the problem is you. The reed is always the first thing to check.
On reed brands: the Rico Orange Box reeds tend to run very soft and usually aren't a good fit for anyone who's been playing more than a few weeks. I generally don't recommend them. Starting with a better quality reed like D'Addario Reserves will make your life noticeably easier.
The air is the sound. If your air isn't strong and directed, the reed won't vibrate properly and your sound will suffer.
There are two failure modes here. The first is blowing too softly, where there simply isn't enough energy to get the reed vibrating. The second is blowing with unfocused air that leaks out the sides of the mouth or just spreads out too wide before it reaches the reed.
What we want is a strong, narrow, fast airstream, similar to blowing through a coffee stirrer straw. All of that energy concentrated in one direction, pointed straight at the reed. The more efficiently you convert your air support into reed vibration, the better your sound is going to be.
Tonguing is one of the trickiest things to teach and learn because it all happens inside the mouth. No one can see what your tongue is doing, which means mistakes often go uncorrected for a long time.
The correct technique is: the tip of the tongue touches the tip of the reed to separate notes, with as little tongue motion as possible. The air stays continuous throughout. The tongue just briefly interrupts it.
Common tonguing mistakes include:
This is the number one mistake I see, and it affects everything downstream. When you don't have enough mouthpiece in your mouth, the sound gets tight and constrained. When you have too much, it goes wild and squeaky.
Here's a helpful way to find the right amount: start with less mouthpiece than you think you need, then gradually take more in until the sound starts to get out of control. Then back off just a little from there. That sweet spot in between is where you want to be. The reed and mouthpiece have a natural contact point, and your bottom lip should sit right around that area.
If you're not sure, listen to the sound. It'll tell you everything you need to know.
I cover all ten of these mistakes with live demonstrations in my YouTube video on this topic. Seeing and hearing each mistake in action makes it a lot easier to recognize them in your own playing.
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I can't wait to see where your clarinet journey takes you!