WACO, Texas (KWTX) - After 20 years behind the mic, the host of KWBU’s “I Hear America Singing” is signing off one last time. Ross Burns has been the voice behind “I Hear America Singing,” a weekly folk music show that mixes songs from his collection with the stories behind them. Burns, an Austin native and retired librarian, has spent years digging into the history of artists and the music they make. “It takes some creativity.