Refers to the final movement or concluding piece of a musical work, such as a symphony, opera, or sonata.
The symphony's finale was very moving.
終曲 is the closing movement or finale of a musical work, the direct opposite of 序曲, which is the opening piece.
Compound of 終 (shū, 'end') and 曲 (kyoku, 'musical piece'). The reading is on'yomi.