There's Lionel Bart's musical "Maggie May"

Then, yonks ago, BBC steam radio did a couple of childrens serial adventure programs based on the songs "High Barbaree" and "Sweet Polly Oliver"

I also recall an early TV series that used the dance tune "Neopolitan Tarantella"

Wasn't there also a TV series that used the song "Lightning Tree"

And with a folk theme, but not a song, there's The movie "The Green Man" with Albert Finney.

Bert.