Two calligraphy works were displayed at the BMW exhibition. One bears the characters De Er, the middle part of Men De Er Mi. Its pronunciation rolls off the tongue, like a secret code understood only by kindred spirits.
关于「闷得儿蜜」 about Men De Er Mi
The other piece features stylized ancient seal script characters King of Wandering Wild. This title stands for his alter ego, which also appeared later in his self-written single Four-Character Song.