When the African-American dancer Josephine Baker visited Berlin in 1925, she found it dazzling. The city had a jewel-like sparkle, she said, the vast caf?s reminded me of ocean liners powered by the rhythms of their orchestras. There was music everywhere. Eager to look ahead after the crushing defeat of World War I, Weimar Germany embraced the modernism that swept through Europe and was crazy over jazz. But with the rise of National Socialism came censorship and proscription: an art form born on foreign soil and presided over by Negroes and Jews could have no place in the culture of a master race. InDifferent Drummers, Michael Kater--a distinguished historian and himself a jazz musician--explores the underground history of jazz in Hitler's Germany. He offers a frightening and fascinating look at life and popular culture during the Third Reich, showing that for the Nazis, jazz was an especially threatening form of expression. Not only were its creators at the very bottom of the Nazi racial hierarchy, but the very essence of jazz--spontaneity, improvisation, and, above all, individuality--represented a direct challenge to the repetitive, simple, uniform pulse of German march music and indeed everyday life. The fact that many of the most talented European jazz artists were Jewish only made the music more objectionable. In tracing the growth of what would become a bold and eloquent form of social protest, Kater mines a trove of previously untapped archival records and assembles interviews with surviving witnesses as he brings to life a little-known aspect of wartime Germany. He introduces us to groups such as the Weintraub Syncopators, Germany's best indigenous jazz band; the Harlem Club of Frankfurt, whose male members wore their hair long in defiance of Nazi conventions; and the Hamburg Swings--the most daring radicals of all--who openly challenged the Gestapo with a series of mass dance rallies. More than once these demonstrations turned viol£¹