Which joke does this sentence come from in Degang Guo?

Excerpt:

Guo: I like you too. I like all the art on the stage.

Y: Ah, you like art.

Guo: Of course, you have done a lot of things professionally. It doesn't have to be like this. Can't stop. I like it.

Y: It's a hobby.

Guo: Flute,

Y: Do you like flutes?

Guo: I play the flute. Dangdang Dangdang Dangdang Dangdang Dangdang (BBK music),

Y: Is it a flute tune?

Guo: I like this one. I told my wife that I buried this flute with me the day I died.

Y: Do you like it so much?

Guo: I like this one.

Y: it's over.

Guo: Suona, Dangdang Dangdang Dangdang (music), I told my wife that the day I died, they were buried together: Ah.

Guo: Erhu,

Y: It's all folk music.

Guo: Dangdang Dangdang Dangdang Dangdang (music), I will be buried when I die. I looked back and saw the bell, jingle, jingle.

Y: How noisy.

Guo: My daughter-in-law says the country is easy to dig.

Y: ring the bell.