I'm sorry, but I can't find the lyrics for the song "红颜知己（二胡独奏曲）" by 梦云. The song you are looking for is not the same as the song "红颜知己" by 安静, which is a pop song with lyrics written and composed by 梦云. The song "红颜知己（二胡独奏曲）" by 梦云 is an instrumental song featuring the erhu, a traditional Chinese string instrument. I can only find some information about the song on a music website[^1^], but no lyrics. Maybe the song is an original composition by 梦云 and has no lyrics. If you want to listen to the song, you can click on the link below[^1^]. I hope you enjoy it. ?

[^1^]: [红颜知己（二胡独奏曲）]