Clarinet players everywhere are quite familiar with the dreaded squeak. But what about the squeak’s distant cousin, the undertone? Squeaks are easily identifiable – shrill, piercing, and distressing to any dogs in the nearby vicinity. An undertone is more subtle – it is the grunting, hollow sound that is literally under the tone you are trying to play. Undertones can happen in any register, but they are most common in the clarion and altissimo register. Just like squeaks, undertones are a completely normal part of being a clarinetist. However, if you notice that undertones are a recurring issue in the practice room, here are a few causes and how you…