Along with arsenic and mercury, antimony is one of the deadliest elements on the table. But like osmium, this substance is also intertwined with the history of music. For one thing, antimony bears the distinction of being the first element named in Tom Lehrer's "The Elements" song from the 1950s, in which Lehrer sang all the elements of the periodic table to a Gilbert and Sullivan tune.
And, in the grand tradition of horribly misguided medical cure-alls, doctors often prescribed antimony as medicine. One such patient who took it was Wolfgang Amadeus Mozart. The genius composer was treated with antimony for his depression and fever shortly before dying at the age of 35. So might've been chemistry, not Salieri, that did him in.