Harald Stamm began his vocal studies with Franz Fehringer. In 1967 he won prizes at the International Schubert Competition in Vienna and in 1968 at the VDMK competition in Berlin.
His debut took place in 1968 at the Musiktheater Gelsenkirchen, followed by engagements in Kassel and Cologne. From 1973 to 2009 he was a member of the Hamburg State Opera.
Guest performances have taken the bassist to numerous national and international stages: Munich, Berlin, Frankfurt, Tokyo, London, Buenos Aires, Madrid, Barcelona, Lisbon, Pretoria, Hong Kong, as well as the festivals in Salzburg, Bregenz, Lucerne and Verona.
His repertoire includes almost the entire German and Italian bass section. Harald Stamm made his debut at the Metropolitan Opera New York in 1979 with his most sung part, the Sarastro in the "Magic Flute".
In 1988 Harald Stamm was appointed by the Senate of the Hanseatic City of Hamburg as Kammersänger. In 1993, the Berlin Senate appointed him professor of singing at the University of the Arts. Harald Stamm summed up his wealth of experience in his vocal theory "Kraftvoll entspanntes Singen".
In 2009 he took leave of the stage with the role of Pogner in "Meistersinger" and since then he has been working exclusively as a teacher.
From 2004 to 2018 Harald Stamm was a jury member of the DEBUT Classical Singing Competition. In 2010 he took over the chairmanship of the jury of DEBUT and held this position until 2018. In 2018 he resigned of his own volition as chairman of the jury and member of the jury.