The term MUSICAL LOCKS is a combination of two words. The first word, 'MUSICAL, ' refers to a genre of art that involves the use of sound and music. It can refer to any type of performance or composition that includes singing, playing instruments, or both. The second word, 'LOCKS, ' refers to a hairstyle in which the HAIR is pulled back and secured with a band or clip. This style is often seen in MUSICAL performances, as it allows the performer to move freely while performing. Together, the two words form a phrase that describes a hairstyle that is often seen in MUSICAL performances.