Our friends at Cedille Records, the Grammy Award-winning, Chicago-based classical record label, are about to embark on their 20th year.   Launched two decades ago in a student apartment on Chicago’s South Side by James Ginsburg, then 24, son of Ruth Bader Ginsburg, who is a pretty prominent lawyer in Washington, DC,  Cedille (that’s say-DEE to you) made its debut in November 1989 with its first CD release, a program of solo piano pieces performed by Chicago-based Soviet emigre pianist Dmitry Paperno. Since then, Cedille’s catalog, which features world-class musicians in and from the Chicago area, has grown and diversified, while