composer biographies

OK, recommendation time again. I'm looking biographies of classical composers but want ones with a "life and times" approach rather than detailed chronology and musical analysis. Ones that might, say, discuss the structure of organs in Bach's time or how the cantata developed more than the names of his children. Something like Barzun's Berlioz and His Century or the section on Satie in Shattuck's The Banquet Years. Any era, any remotely recognizable composer but at the moment I'm especially interested in Bach, Chopin, Satie (again), Sibelius and Stravinsky. Suggestions? Thanks, Lang