Generative Music Patterns

Generative music always obeys patterns defined by the coder.
Under these patterns, lines of code use mathematical or random algorithms to make the music sound somehow melodious.

I've been selected for a one month (July 2017) web residency by Solitude and ZKM to develop such patterns.
The result of my work can be followed on https://schloss-post.com/generative-music-patterns/
and is compiled in this free app.