James Lloyd Morrison AM is an Australian jazz musician. Although his main instrument is trumpet, he has also performed on trombone, tuba, euphonium, flugelhorn, saxophone, clarinet, double bass, guitar, and piano. He is a composer, writing jazz charts for ensembles of various sizes and proficiency levels.

The trumpet is a brass instrument commonly used in classical and jazz ensembles. The trumpet group ranges from the piccolo trumpet—with the highest register in the brass family—to the bass trumpet, pitched one octave below the standard B♭ or C trumpet.