Huron, David, and Matthew Davis. “The Harmonic Minor Scale Provides an Optimum Way of Reducing Average Melodic Interval Size, Consistent With Sad Affect Cues”. Empirical Musicology Review 7, no. 3-4 (July 1, 2013): 103–117. Accessed April 27, 2024. https://emusicology.org/index.php/EMR/article/view/3732.