Gerald Wilson's first major work in the world of jazz came with Jimmy Lunceford. Although he had big shoes to fill by taking the trumpet/arranger chair from the recently departed Sy Oliver, Wilson handled the challenge with aplomb. His arrangement "Yard Dog Mazurka" would go on to serve as the basis for the Stan Kenton hit "Intermission Riff."

Having moved to Los Angeles by 1960, Wilson freelanced as an arranger while putting together his own reading band, which released several critically acclaimed albums on the Pacific Jazz label. These bands frequently showcased the talents of the top jazz soloists on the west coast at the time.

Wilson maintained a busy body of work all the way up until his passing at age 96. During the 1970s, he became deeply involved in education, teaching at several colleges in his home state of California. He also continued to write new music and lead bands, both on the east and west coasts, during this time. His final recording, 2011's "Legacy," was nominated for a Grammy.