http://www.jazzelectrosongs.com/
Digital music has a history that goes well past electro songs and the club music scene of the last couple of decades. The idea of electronic music actually goes as far back as 1919, with the invention of the Theremin. The form continued to evolve over time, but it wasn't till the advent of synthesizers in the 1970's that electro songs and electronic music really started being taken seriously as a real form of music, rather than as a gimmicky, sideshow kind of area of the musical landscape.