 I'm Chris Morrison for KUNR and KNCJ Public Radio. Tomorrow at 6 p.m., Art Town's Art Town on the Quad series features a free performance by the String Theory String Quartet at the Quad at the University of Nevada, Reno. I spoke with three of the four members of the quartet, violinist Ruth Lenz and Jessica Escobar, and cellist Johnny Lenz. They explained where the name of their group came from.