[RadioKid]

It is a difficult question (for me).

As a screenplay, it seems to be performed by improvisation. I remember a word "戯れ唄:Zare-Uta(bawdy song/poem)" at the performance. However Zare-Uta is not a song but written poem usually.

I think we can not see these performance (improvised song) these days except for such screenplay.

Any other native Japanese could know these kind of songs. Anyone?

By the way, "雨あがる:Ame-Agaru(after the rain)” is a nice story written by FUJISAWA-SHUHEI(family name first). I enjoyed the whole video in youtube.