A composer's creation is a combination of various musical elements, such as a SONG, TUNE, THEME, opus, SCORE, SUITE, and MUSIC. A SONG is a short piece of vocal MUSIC with words and melody. A TUNE is a melodic phrase or sequence of notes. A THEME is a recurrent idea or motif in a piece of MUSIC. An opus is a large-scale musical work, usually numbered and often consisting of several movements. A SCORE is a written form of a musical composition, showing the relative positions of the notes and chords. A SUITE is a set of pieces of MUSIC, often in the same key, and usually performed one after the other. MUSIC is an art form consisting of sound and silence expressed through time.