William George "Bill" Loose (June 5, 1910 – February 22, 1991) was an American composer of film, cartoon and television soundtrack music and stock musical cues.
Early life and career 
Born in Michigan, Loose became a staff musical arranger for an Omaha, Nebraska radio station. During World War II he let the United States Army Air Forces Orchestra in New York.
In the 1950s, Capitol Records represented several musical libraries. Capitol decided to assemble its own library in 1955. When Nelson Riddle turned down the job of composer of their musical cues, they hired Loose and John Seely. By 1957 Loose’s music was played on no less than 24 different television shows a week. Loose’s proven record led him to compose scores for American television series such as The Sheriff of Cochise and The Texan. Loose also was in demand as an arranger for various artists on Decca Records and Reprise Records.
In the 1960s Loose’s continual work on films and television led him to compose such diverse works as the theme to The Hollywood Squares two Mike Henry Tarzan films and score several films for Russ Meyer.
Death and legacy 
Loose died of a heart attack at the age of age of 80.
The reuse of Loose's cues for the 1990s cartoon series The Ren & Stimpy Show brought him a new generation of fans.
A tribute to Loose was given in a The William Loose Songbook a double CD by Richard Peterson.
A music company Loose had founded with Billy May called "May-Loo Music" was left to Loose's wife Irma after his death. She was awarded a $1.9 million jury award when a business manager mismanaged her firm.