What's the name of the song "Is it because of self-interest"?

The lyrics "Why is the blue light and yellow axis private" come from the song "Langtaosha carries forward ancient poetry", which is a song sung by Lang Garam.

Lyrics: Liu Mingjie

Composer: Yi Xuan

Singing: Longalun

Lyrics:

Wonderful ancient poetry

Why? When?

Outsiders began to call it outdated.

Fingers will be weak for a hundred years.

Heart sad

Heart sad

Twenty years of independent practice

Who knows what is going on?

Is it self-interest?

Singing string songs is providence.

Help me write poetry.

Help me write poetry.

Wonderful ancient poetry

Why? When?

Outsiders began to call it outdated.

Fingers will be weak for a hundred years.

Heart sad

Heart sad

Twenty years of independent practice

Who knows what is going on?

Is it self-interest?

Twenty years of independent practice

Who knows what is going on?

Is it self-interest?

Twenty years of independent practice

Who knows what is going on?

Is it self-interest?

Singing string songs is providence.

Help me write poetry. Help me write poetry.

Help me write poetry. Help me write poetry.