Friedrich Kalkbrenner seriously intended to become Kalkbrenner's pupil, but he changed his mind after this encounter with the celebrated man: Clara Schumann, wife of composer Robert Schumann, and herself an eminent pianist and composer, spent several months in Paris during the year 1839. She met many of the Parisian pianists, Kalkbrenner among them. In a letter home to her father, piano pedagogue Friedrich Wieck, she wrote: German poet and satirist Heinrich Heine in his "Letters on Music from Paris (1840–47)" wrote with biting wit on musical life and musicians in the French capital. Kalkbrenner was the target of some of Heine’s more
Hans-Georg Wieck at the North Atlantic Council (NATO). He served at the Ministry of Defence inter alia as head of the Policy Planning Staff and became president of the BND from 1985 to 1990. After his retirement from government service he was head of the OSCE Advisory and Monitoring Group in Minsk, Belarus from 1998 to 2001. From 1996 to September 2008 he was Chairman of the German - Indian Society. Currently Wieck is advisor to the Gesprächskreis Nachrichtendienste in Deutschland e.V. (GKND), a discussion group about intelligence services in Germany founded by his former colleague Wolbert Klaus Smidt in close cooperation