Noted British composer and musical director, Muir, received formal training at the prestigious Royal Academy of Music, laying the foundation for a remarkable career in the film industry. Initially, he gained experience by working on a series of quota quickies during the 1930s, a prolific period that would eventually pave the way for his big break.
It was Alexander Korda who recognized Muir's talent, hiring him as musical director for the 1934 epic, The Rise of Catherine the Great. This significant opportunity marked the beginning of a long and illustrious career, as Muir went on to conduct the scores for two notable films, Sir William Walton's compositions for Henry V (1944) and Hamlet (1948). Throughout his distinguished career, Muir established himself as one of the most renowned composers and musical directors in British cinema, leaving a lasting legacy in the world of film music.