Tung-Lung Lin (b. 1964 Taiwan) is a D.M.A. candidate at University of North Texas. In United States, he has been studied music composition with Phil Winsor, Joseph Klein, Cindy McTee, Stephan Taylor and Richard Gary Cook. His works include traditional acoustic music, electro-acoustic music and art installations. His latest major works is The Heidegger Collection for full orchestra in five movement (28 minutes, 1998-2000). His music and art works have been performed or exhibited in Taiwan, Europe, and the United States. Mirror of Time for tape (I 999), has been broadcasted by Foldover WOBC 91.5 FM in Oberlin, Ohio at November 1, 1999 and performed in Web Concert by SEAMUS at November 1, 1999. The basic material of this piece is generated by an algorithm music composition software called Music Sculptor. Music Sculptor is created by composer Phil Winsor and programmer Chang, Kuo-Long at University of North Texas. Mirror of Time has two parts. The second part rhythmically is the retrograde of the first part. All voices are playing a steady rhythm through out the piece. The tempo relationship between each voice is based on prime numbers.