• Kostka, Stefan M.; Payne, Dorothy, Tonal harmony: with an introduction to twentieth-century music, 7th ed., New York, McGraw-Hill, cop 2013Compulsory*
• Ling, Jan, Tvärspel: trettioen artiklar om musik: festskrift till Jan Ling, Göteborg, Musikvetenskapliga inst., Univ., 1984Compulsory*
• Biamonte, Nicole, Triadic Modal and Pentatonic Patterns in Rock MusicCompulsory*

* Compulsory