1. Carrabré, A. (2015). Understanding Schenkerian Analysis from the Perspective of Music Perception and Cognition. University of Ottawa (Masters Dissertation).
2. Creswell, J. W. (2013). Qualitative Inquiry and Research Design: Choosing Among Five Approaches (3rd ed.). Thousand Oaks, CA: SAGE.
3. Martínez, I. C. (2008). The Cognitive Reality of Prolongational Structures in Tonal Music. University of Roehampton Surrey (Doctoral dissertation).
4. Dibben, N. (1994). The cognitive reality of hierarchic structure in tonal and atonal music. Music Perception, 12(1), 1-25.
5. Hjortkjær, Jens. (2009). Hierarchical Perception of Melody. Proceedings of the 7th Triennial Conference of European Society for the Cognitive Sciences of Music: ESCOM, in Jukka Louhivuori, Tuomas Eerola, Suvi Saarikallio, Tommi Himberg, and Päivi-Sisko Eerola (eds.), 181-186.