Electronic Music No.2 by William Lennox was composed in 1970 using the voltage control tecniques at the Studio of Electronic music at the University of Utrecht.

Electronic Music No.2a shows clearly the influence of G.M.Koenig with whom the composer was studying at the time.

Electronic Music No.2b is a radicle extension of the techniques of voltahe control production and clearly exhibits the innovation of the composer of an original style of powerful dense electronic music