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.

Making Your Own Music: Songwriting Basics
Songwriting is an excellent way to express your thoughts and feelings and to communicate them to your friends and family, even if you have no aspirations of musical fame or fortune.

