Following Reich, Phillip Glass emerged as the developer of minimalist music through his emphasis on repetition and structuring rhythm. (Wim Mertens) Glass' minimalist compositions can be found in film scores, symphonies, and operas, which makes him one of the most influential minimalist musicians of the 20th century.
Take a sketch of what is happening. Then when you get back to where you work take that rough draft and crate it as best as you can make sure to use color so you get the color right