 Erdman doesn't have a lot to say. She'd rather let her music speak for her. I love music, she said. Music has always been a big part of Erdman's life. She taught herself to play the piano by watching her brother play. Erdman doesn't read music. That's all in my head, she said, after playing a song on the piano in the chapel at Baptist Health and Rehab where she lives. My arms got tired, they said. Enough is enough, Grandma.