Lin Yang and Zhian Mi and Jiacheng Xiao and Rong Li, Machine Learning for Music Aesthetic Annotation Using MIDI Format: A Harmony-Based Classification Approach. journal = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology. July 2021, vol. 175(7). 423 - 427 [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10012124.