好听

pleasant to hear; nice to listen to; pleasant-sounding; melodious; musical; sweet-sounding; euphonious

欢快

lively; cheerful; joyful; cheery; bright; genial; merry; blithe; jolly; jaunty; perky; sprightly; upbeat; cheerfully; joyfully; merrily; blithely; lightheartedly; gaily; cheer; cheerfulness; lilt

歌曲

song; track; melody