George Greeley was a notable American pianist, conductor, and composer whose style was predominantly classical, combined with popular music. He gained recognition for his contributions to film and television scores, including the famous "Theme from Lassie." Greeley was particularly known for his series of "Popular Piano Concertos," where he adapted popular music standards in the form of concertos. His diverse career and ability to bridge genres had a significant influence on the use of piano in popular and cinematic music.