A controlled composition clause affects the mechanical royalties paid on a composition that is co-written by the recording artist. The controlled composition clause in a recording contract places a limit on how much the label is required to pay for songs in which the artist is also the songwriter.

The Evolution Of The Electric Guitar
The first electric guitars were made in the 1930’s in response to a demand from guitarists in bands whose rhythmic stylings could not be heard above the other instruments.

