“Letters” is our first song in a traditional Chinese style. Both the lyric and music are built on many olden methods to describe a story about a wanderer, and the music video tries to use the same scene at a different time to express the feeling of “Time passes, but things are different.” The China flute represents the long-lived and delicate emotion, while the pipa represents the hidden up-and-down emotion. Wish everybody would like this classical aesthetic song.