dc.description.abstract | The Generative Theory of Tonal Music in its original form (Lerdahl & Jackendoff 1983) applied to music belonging to the Western tonal idiom only. However, during the last decade, theoretical and analytical research has been conducted on its application on diatonic or chromatic modal music. More specifically, Lerdahl addresses chromatic pitch spaces in chapters 6 & 7 of his "Tonal Pitch Space" (2001) and conducts analyses of late 19th century and 20th century music, while Temperley (The Cognition of Basic Musical Structures, 2001) and Tsougras (Modal Pitch Space, 2003) explore mainly the diatonic modal space. The present paper aims to clarify the concepts of modal mixture, modal interchange, hypermodulation and triadic or non-triadic modal harmony as encountered in early 20th century chromatic modal music in relation to the four components of the Generative Theory analysis methodology (GS, MS, TSR, PR) and Tonal Pitch Space. Selected modal idioms are analyzed theoretically (calculation of their corresponding pitch spaces) and practically (GTTM analyses of selected excerpts of music by Debussy, Bartok, Messiaen, etc). The research sheds more light into a relatively unexplored area of GTTM and TPS and extends the scope of the analytical methodology toward chromatic modal music. The application of GTTM to quasi-tonal 20th century music may contribute to a better understanding of the nature of this music and its perceptual and cognitive attributes. | en |