Opus
Definition 1 of 3
Pro Tip 1/2
Music Specificity
Opus refers to specific compositions, often numbered by the order of creation or publication. Beethoven's Opus 27, No. 2, is also known as the 'Moonlight Sonata'.
Pro Tip 2/2
Composer's Collection
An opus can represent individual pieces or an entire collection created by a composer. Mozart's operatic opuses are still celebrated today.