Every cello has wolf notes
A wolf note, or wolf tone, is a “problem note”: a raspy, stuttering, “howling” pitch on the cello, usually between E-flat and F-sharp, most noticeable on the D and G strings. The unpleasant resonance is due to the dimensions of the cello body being at odds with the string. This excellent article from Strings Magazine describes the cause of wolf tones and offers potential solutions. A quote from luthier Chris Dungey from the Strings article sums up the challenge of finding a solution: “What seems like a simple attempt to tame the wolf is in fact a very complicated matter that is unique and individual to each cello and cellist”
Three options for taming wolf notes
- Simple solution for a mild wolf: Slice a notch into a rubber Tourte-Style Mute and place it on the G or C string between the bridge and tailpiece. The notch keeps the mute in place and prevents it from slipping toward the tailpiece. As with option 2 below, the mute will need to be placed in a spot that most closely eliminates the wolf sound.
- This newer version of a traditional wolf eliminator can provide some relief for more serious wolfs.
- The Güth resonator is the only option that completely resolves the wolf. The drawback is it also soaks up the natural resonance of the cello body. The cello will sound clear but less full and ringing with the Güth resonator.
Experiment
Most shops welcome the cellist to try different options before purchasing, and online retailers like Shar, Southwest Strings, Johnson Strings and Amazon accept returns.
Alternative or complementary solution
When possible, if the music allows for it, as cellist Anner Bylsma states in the Strings article: “you can lessen the severity of a wolf tone by placing an available left-hand finger on another string at the pitch of the wolf or an octave of it.” Good advice, and it could be the ideal solution depending on your cello and your performance requirements.