Néstor Nápoles López

PhD Candidate in Music Technology

Symbolic and Audio Musical Key Estimation

Néstor Nápoles López is a PhD candidate in Music Technology at McGill University, working under the supervision of professor Ichiro Fujinaga. Néstor holds an MSc in Sound and Music Computing from Universitat Pompeu Fabra (Spain) and a Licenciatura en Informática (undergraduate degree in software engineering) from his hometown university, Universidad de Guadalajara (Mexico). His research interests include Music Information Retrieval (MIR) in the context of tonal music (mostly around the computational study of musical keys, tonicizations, modulations, and roman numerals), music encoding, and educational video games for musicianship training.

As part of his research assistant role at the Distributed Digital Music Archives and Libraries (DDMAL) Laboratory, Néstor is the current maintainer and full-stack developer of the Cantus Ultimus website, a public website that provides an interactive interface for the simultaneous visualization of expert-curated chant data and its source manuscript images.


  • Nápoles López, Néstor, Claire Arthur, and Ichiro Fujinaga. 2019. “Key-Finding Based on a Hidden Markov Model and Key Profiles.” In Proceedings of the 6th International Conference on Digital Libraries for Musicology. DLfM ’19. New York, NY, USA: ACM.

  • Nápoles López, Néstor, Gabriel Vigliensoni, and Ichiro Fujinaga. 2018. “Encoding Matters.” In Proceedings of the 5th International Conference on Digital Libraries for Musicology, 69–73. DLfM ’18. New York, NY, USA: ACM. https://doi.org/10.1145/3273024.3273027.

Research Interests

  • Deep Learning
  • Music Theory
  • Tonal Music
  • Music Information Retrieval

Academic Record

  • PhD candidate in Music Technology, McGill University
  • Masters in Sound and Music Computing, Universitat Pompeu Fabra
  • Licenciatura en Informatica, Universidad de Guadalajara (México)
  • Profesional Medio en Piano, Instituto Nacional de Bellas Artes (México)