Prolific composer and orchestrator, who often worked on cartoon scores, as well as writing TV themes for such series as "Trackdown" and "Wanted: Dead or Alive". During World War II, he worked as arranger for the U.S. Army Air Forces Orchestra in New York. Loose later partnered Billy May in a company called 'May-Loo Music' and did musical arrangements for artists recording for Capitol, Decca and Reprise Records.