Merriam-Webster's Collegiate® Dictionary, 11th Edition
MUSICAL
I. adjective
Etymology: Middle English, from Medieval Latin musicalis, from musica
Date: 15th century
1. of or relating to music, having the pleasing harmonious qualities of music ; melodious , having an interest in or talent for music, set to or accompanied by music, of or relating to musicians or music lovers, musically adverb
II. noun
Date: 1823
musicale , a film or theatrical production typically of a sentimental or humorous nature that consists of musical numbers and dialogue based on a unifying plot