From wikipedia:
Alkan died in Paris at the age of 74. For many years it was believed that his death was caused by a bookcase falling on him in his home, brought down as he reached for a volume of the Talmud which he had placed on the highest shelf (in the position closest to Heaven). This apocryphal tale, which appears to have been circulated by Delaborde, has been effectively disproved by Hugh MacDonald in an article in the Musical Times (vol. 129, 1978 - More on Alkan's Death). The story may have its roots in a legend told of the Rabbi Aryeh Leib ben Asher, known as 'Shaagat Aryeh', rabbi of Metz, the town from which Alkan's family originated. (See also talk page for discussion of Alkan's death). Alkan is buried in the Cimetière de Montmartre, Paris.
A myth also circulates about an alleged obituary of Alkan, cited as fact in Ronald Smith's biograhpy and since widely quoted, credited to the magazine 'Le Ménéstrel', beginning with the words "Alkan is dead. He had to die in order to prove his existence." No such obituary appeared in 'Le Ménéstrel' and none has been located to date in any other contemporary journal.