Chuck Brown doesn't know when to quit. That's not a character flaw — it's a trait that gave the world the musical equivalent of a marathon.

The 73-year-old guitarist and singer, dubbed the "Godfather of Go-Go," is still a man on the move thanks to the funk-based sound he created in the 1970s with his band, the Soul Searchers.

"Go-go music just keeps going and going and going," Brown says by phone from his home in the Maryland suburbs of Washington, D.C.