凉城夜半离殇一曲终别离
[liáng chéng yè bàn lí shāng yī qŭ zhōng bié lí]
Descriptive scene setting name: 'Under the chill city night, sadness at parting expressed in one last song'. Implies loneliness and melancholy, especially during late-night solitary moments after bidding farewells.