deletions | additions       diff --git a/bibliography/biblio.bib b/bibliography/biblio.bib  index ed002cb..7b791a7 100644  --- a/bibliography/biblio.bib  +++ b/bibliography/biblio.bib 
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year = {1987},  publisher = {National Acad Sciences},  }  @article{de2009modeling,  title = {{Modeling harmonic similarity using a generative grammar of tonal harmony}},  author = {De Haas, W Bas and Rohrmeier, Martin and Veltkamp, Remco C and Wiering, Frans},  year = {2009},  publisher = {International Society for Music Information Retrieval (ISMIR)},  }