He and partner Andrew McKee developed a following with weekly performances on the campus of the University of Texas at Austin.

This led to gigs at renaissance fairs, science fiction conventions, and Celtic music festivals as well as parties and weddings for the pair.

After the group split up in 2008, Gunn became a prolific recording musician in the Celtic music community, releasing eleven new albums between 2008 and 2011.

The music styles range from traditional Irish songs and tunes to modern Celtic rock from around the world.

He then embarked on work on one of his most-popular albums, Irish Drinking Songs for Cat Lovers.

He began diverging from his traditional Celtic music base with more Geek-themed albums inspired by Firefly, Lord of the Rings, and other science fiction pop culture media shows.

In its early days, it is claimed to have had over 20,000 downloads per episode and was one of the top music podcasts on iTunes.