1. Arau, Javier. 2008. “Augmented Scale Theory.” http://www.javierarau.com/augmented-scale-theory
2. Jordan, Stanley. 2017. “The Jordan Chromatic System.” StanleyJordan.com. https://stanleyjordan.com/integral.arts/courses/course/index.php?categoryid=5
3. Kasler, Ariel. 2014. “Giant Steps: Chord Substitution and Chord-Scales for Improvisation.” MA thesis, Bowling Green State University, OH.
4. Portmantonality and Babbitt’s Poetics ofDouble Entendre