Casey Mongoven
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Casey Patrick Mongoven (born April 30, 1979) is an American composer who works with Fibonacci numbers and the golden ratio.
[edit] Biography
Mongoven was born and raised in California. At the age of 10 he started playing guitar and writing his first music, influenced by rock bands such as Def Leppard and Metallica. At 14 he began to write his first classical works. At the age of 18 he moved to Boston, Massachusetts, where he studied classical composition with Alan Fletcher at New England Conservatory of Music. After receiving his degree in 2001 he moved to Vienna, Austria. Mongoven has resided in Germany since 2003.
[edit] Music
In 1997 Mongoven began using Fibonacci numbers in his work. In his earliest works, Fibonacci pitch sets are used and the metric structures are based on the golden ratio and Fibonacci numbers. In the year 2001, Mongoven developed a system of equal temperaments based on powers of the golden ratio 
, where 
is a positive integer and 
. In 2002, he wrote the first works in what he describes as "the style of music characterized by Fibonacci numbers and the golden ratio." In this style, each work is a setting of a mathematical sequence related to Fibonacci numbers and the golden ratio. Examples of sequences used in his music include the classic Fibonacci sequence (sequence A000045 in OEIS), the Lucas sequence (A000032), Zeckendorf representations (A014417), the vertical para-Fibonacci sequence (A019586), and sequences based on Pisano periods (A001175) and Fibonacci entry points (A001177). Most of Mongoven's works are composed in the programming language Csound.
Casey Mongoven runs one of the largest composer websites in the Internet, publishing all his works exclusively in the Internet. Over 900 works - sound files and scores - are available for download on his site.
