Timme Rosenkrantz (1911–1969) was a Danish journalist, author, concert and record producer, radio show host, and entrepreneur with a consuming passion for jazz and little head for business. Known in Denmark and New York as the “Jazz Baron” because of his noble lineage, he was the first European journalist to cover the jazz scene in Harlem. Harlem Jazz Adventures: A European Baron’s Memoir, 1934–1969 recounts Rosenkrantz’s happy years in New York City, where he would produce jazz concerts, record top musicians and bands in his midtown apartment, organize a “dream band” for Timme Rosenkrantz and His Barrelhouse Barons, a 1938 RCA Victor recording, (DL) live in Harlem and run a record shop with his life companion, journalist and singer Inez Cavanaugh. A good friend of jazz impresario John Hammond, Rosenkrantz would become the James Boswell of the Harlem jazz scene. Duke Ellington, Art Tatum, Coleman Hawkins, Billie Holiday—there wasn’t a New York jazz musician unknown to “Honeysuckle Rosenkrantz,” as christened by Fats Waller. Drawing on the published Danish-language original Dus med Jazzen, and an unpublished English free translation (DL) by Rosenkrantz and Cavanaugh, translator-adapter Fradley Hamilton Garner gives polish and context to Rosenkrantz’s stories of meetings with Cecile and Louis Armstrong, Benny Carter, Willie “The Lion” Smith, Eddie Condon, Erroll Garner—whom Rosenkrantz discovered and was first to record—and many others. This book is a must-have for jazz lovers. Social historians interested in the intersection of race and the music business will find in Rosenkrantz’s memoir an invaluable primary source on Harlem’s social scene and its musical legacy.