The Symphony No. 6 in A minor by Gustav Mahler is a symphony in four movements, composed in 1903 and 1904, with revisions from 1906. It is sometimes nicknamed the Tragic, though the origin of the name
Gustav Mahler in 1907
Contemporary caricature about the unorthodox usage of a hammer: "My god, I forgot the car horn! Now I can write another symphony." (Die Muskete [de], 19 January 1907)
Another version of the "hammer", used by the Baltimore Symphony Orchestra for performances in November 2016