Andrea Callea has been making electronic music since 1997. Besides the lives with Mi.S.Fu, Andrea never thought much of his music. In 2008, he released lost tracks and old .xm on Jamendo as CGA under Creative Commons.

In 2012, Aner Andros succeeded CGA. With a passage marked by a concentration on internal variety and abstractions, moving from obscure lengthy pieces to denser sound-design-focused music.