Yesterday, we aired a story about Maryland's Genuine Progress Indicator, an alternative economic index that factors in hard-to-calculate variables like the cost of commuting or the cost of noise pollution resulting in a number comparable to (and usually lower than) a state's per capita GDP.

In the story, David Brancaccio spoke with the governor of Maryland (and 2016 Presidential hopeful?), Martin O'Malley, about the GPI as well as his own lost leisure time (one of the indicators).

So what would the Governor do if he had more time to relax? Why, he would rock out Celtic-style, of course.

Listen to David Brancaccio's story on Marketplace .

Follow Amanda Aronczyk at @@aronczyk