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This is Scientific Americans 60 Second Science.

I'm Karen Huckin.

You're probably familiar with the concept of evolution.

Living things evolve by accumulating genetic changes, which are then weeded out or preserved

through a process of natural selection.

Well, it turns out, the same thing happens in music.

And by using the same software that's used to track mutations in genes,

researchers have mapped out the sorts of changes that shape the evolution of songs.

The findings appear in the journal Current Biology.

I've always loved music since I was a child.

Patrick Savage, an ethno-musicologist at Keo University in Fujisawa, Japan.

I grew up singing English folk songs.

My dad really likes folk music and often has his friends come over and do jam sessions at home.

And then when I moved to Japan about 11 years ago,

I started studying Japanese folk songs,

and I really liked that repertoire too.

...