歐俐廷多媒體音樂作品發表會 含輔助文件 《內在的表象》：原創作品與註釋

Abstract

《內在的表象》為結合器樂（雙簧管、大提琴、鋼琴）、即時電子音樂與影像的多媒體音樂作品。以「正十二面體」（Dodecahedron）及其切割後所產生之多邊形等幾何元素為主要創作概念。樂曲共分為三個樂章，為Essence〈本質〉、Overturn〈翻轉〉、Complexity〈錯雜〉，第一樂章描繪正十二面體由點構築成型再支解回到原點過程；第二樂章創造正十二面體從靜止到翻轉等移動進程與其變化；第三樂章以循環段落與複雜的疊合節奏，顯現隱藏於正多面體中的錯雜交織。作品使用音樂上曲式、音高、節奏等方式製造幾何正十二面體複雜的特性與其對立性，並以器樂與電子音樂對話式的呼應手法作為多面體對偶特性的呈現。數位影像方面則使用多層次的疊合手法表達所見事物的主觀表面與隱藏反面的意象，藉由器樂、電子音樂與影像三者的互動，描繪正十二面體的單純性與複雜性。

本論文說明創作動機以及正十二面體的相關幾何特性，並將器樂、電子音樂與影像的設計依樂章逐一說明。

Inner Facade is a multimedia composition for oboe, cello, piano, live Electronics and video. This piece is created with Dodecahedron and its geometric elements, like Pentagon cutting and the extension shapes as a core concepts. Inner Facade contains three movements which are Essence, Overturn and Complexity. The first movement Essence depicts the process that the Dodecahedron is built from a point to the whole model and comes back to a point at last. The second movement Overturn express the changing process of dodecahedron from static to rolling. The third movement is a circular passage with complex overlapping rhythms and reveals the interweave which is hidden in the regular polyhedron. Inner Facade uses musical structure, pitch and rhythm to portray the complex and oppositional characteristics of Dodecahedron and makes the interaction between instruments and electronic music to appear the duality feature of polyhedron. Digital videos apply multi-layered mixture to express subjective surface and conceal negative image. With interactivity of instruments, electronic music and video represent the Dodecahedron’s simplicity and complexity.

This thesis shows the creative motivation and geometric characteristics of the Dodecahedron and interprets every part according to the movement.