Six years later, while we were all struggling along pre- rock music and tube mascara, Fessenden had left the Weather Bureau, contracted with GE to design and produce some high-frequency alternator-transmitters, and successfully transmitted what’s surely got to be the first radio broadcast of entertainment and music. It was on Christmas Eve in 1906, and it included a phonograph record (Handel), and Fessenden himself playing the violin (O Holy Night).
So, Reginald Fessenden, thanks for believing in your work, for working hard, and for taking those first steps on the voiceover trail.
[I learned all this from Wikipedia, HistoryLearningSite.co.uk. Go read some more; it was pretty fascinating!]