The term COMPOSER'S WORK can be broken down into three crossword solutions: SONG (4 letters), OPUS (4 letters), and SCORING (7 letters). A composer's work is typically composed of songs, opuses, and scores. A SONG is a musical composition for voice or voices, typically with words and a repeating melody. An opus is a musical work, usually numbered to designate the order of a composer's works. Lastly, scoring is the process of writing music for an ensemble of instruments or voices.