He was working on improving the phonograph . ` His early recordings are at the Smithsonian 's National Museum of American History . ` ` To be or not to be , that is the question '' a voice on one side is heard saying .
He was working on improving the phonograph . His early recordings are at the Smithsonian 's National Museum of American History . ` ` To be or not to be , that is the question '' a voice on one side is heard saying .