Hans Klotz was born on October 25, 1900 in Offenbach am Main. He graduated from the Hoch Conservatory in 1922 with a diploma in piano. He later earned a doctorate from that same school in musicology in 1927 where he trained in that subject under Moritz Bauer. He then entered the Leipzig Conservatory where he trained as an organist under Karl Straube and continued piano studies with Anna Teichmüller. He also studied music theory there with Hermann Grabner. In 1933 he went to Paris to train further on the organ with Charles-Marie Widor.[1]