Perhaps the jazz world's most renowned bass player, Charlie Haden was moving from New York to California in 1979 when he stopped in Springfield to visit his family and sit for photos and an interview about his music and his politics. "It's an ongoing responsibility," he said, "to improve the world with music and make the world a better place for the children..."The musician - whose career began playing country music in his family's band on Springfield radio in the 1940s - had already made a name for himself with his association with Ornette Coleman, Keith Jarrett, and the Liberation Music Orchestra and went on to successful collaborations with Ernie Watts, Alan Broadbent and Lawrence Marable in Charlie Haden Quartet West and later with Pat Metheny and others.