As I was reading through my Google+ posts this morning I was amused by a video a gemimate from San Diego, Kathleen Cooper, shared. The word Geneasong to describe this and others in its genre jumped into my head.
Take a look at Julie Andrews and Gene Kelly performing this Geneasong
Update 14 October 2014
I just came across another Geneasong:
Update 19 October 2014
Today I found another Geneasong that I had liked on Youtube many months ago.
A new Geneasong from Mike Gibson on Youtube https://www.youtube.com/watch?v=Qs-PCd5zUXQ&feature=youtu.be