This photo provided by the Museum of Innovation and Science in Schenectady, 

This photo provided by the Museum of Innovation and Science in Schenectady, N.Y., shows Thomas Edison's 1878 tinfoil phonograph. Researchers have digitized what experts say is the oldest recording of a playable American voice and history’s first-ever recorded musical performance, along with the first recorded blooper. Recorded on a sheet of tinfoil on a phonograph invented by Thomas Edison, the recording was made in St. Louis in 1878. It contains a short coronet solo of an unidentified song, followed by the voices of a man reciting popular nursery rhymes. (AP Photo/Mike Groll)
Associated Press
This photo provided by the Museum of Innovation and Science in Schenectady, N.Y., shows Thomas Edison's 1878 tinfoil phonograph. Researchers have digitized what experts say is the oldest recording of a playable American voice and history’s first-ever recorded musical performance, along with the first recorded blooper. Recorded on a sheet of tinfoil on a phonograph invented by Thomas Edison, the recording was made in St. Louis in 1878. It contains a short coronet solo of an unidentified song, followed by the voices of a man reciting popular nursery rhymes. (AP Photo/Mike Groll)
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