@misc{indiciaec21bad05aa65,
  title = {Chord keyboards.},
  author = {J Noyes},
  year = {1983},
  doi = {10.1016/0003-6870(83)90221-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/15676464/},
  note = {Source identifier: 15676464}
}