Thomas Edison invents the phonograph for playing back stored sounds. The first recording he makes is "Mary Had a Little Lamb."
The Chicago Automatic Machine and Tool Company invents the jukebox that plays records (as opposed to the cylinder recordings type of player that had been around since 1889).
In 1917, the first jazz record was issued in the U.S. when Nick LaRoccas Original Dixieland Jazz Band released "The Dixieland Jazz Band One-Step."
The 78 rpm record is introduced.
Adolph Rickenbacker invents the electric guitar. Known as the Frying Pan, it was a lap-steel guitar with an electromagnetic pickup, created by Adolph Rickenbacker and George Beauchamp, in which a current passed through a coil of wire wrapped around a magnet. This created a field that amplified the strings' vibrations.
Billboard puts out its first record sales chart in 1936.
Bluesman Robert Johnson records his first record
Pete Johnson and Joe Turnercut their first boogie records in Kansas City
Boom of boogie woogie in Chicago
Telefunken helps develop magnetic tape for use with tape recorders.
John Hammond's 'Spirituals to Swing' concert in NYC
Saxophonist Louis Jordan leaves Chick Webb's sax section to form his Tympany Five. This might well mark the beginnings of what we know as Rock and Roll