On the “Wolf-note” of the Violin and Cello

@article{RamanOnT,
  title={On the “Wolf-note” of the Violin and Cello},
  author={Chandrasekhara Venkata Sir Raman},
  journal={Nature},
  volume={97},
  pages={362-363}
}
  • C. Raman
  • Published 1 June 1916
  • Physics
  • Nature
IT has long been known that on all musical instruments of the violin family there is a particular note which is difficult to excite in a satisfactory manner, and that when this “wolf-note”, as it is called, is sounded, the whole body of the instrument vibrates in an unusual degree, and it seems to have been also understood that the difficulty of eliciting a smooth note of this particular pitch is due in some way to the sympathetic resonance of the instrument (Guillemin, “The Applications of… 
Playability of the wolf note of bowed string instruments.
TLDR
This prediction is explored by comparing physical measurements with the experience of players after making controlled mechanical changes to a cello and suggests a direct and intimate link between the measurable acoustical parameter and perceptual discrimination.
On the Playability of Wolf Note