songfic

noun2

1. •
   (slang) A fanfic that incorporates song lyrics and/or uses them as inspiration for its plot.

   • For example, in Lines 3 and 4, she asks readers to be gentle with their comments, as this is her first attempt at writing a Beyblade songfic. — 2006
2. •
   (slang) Such fan fiction collectively.

   • In addition to longer switches, the corpus also included songfic based on songs that are originally not in English. — 2017