This Is How DJs Mixed Records Over 100 Years Ago...

Think Disco or early Hip Hop DJs invented mixing and crossfading? I thought the same thing, until I read about this wondrous device. It's called the Chronophone, and it was invented in 1910 by French engineer Leon Gau...

http://www.neatorama.com/2012/06/15/this-is-how-djs-mixed-records-over-100-years-ago/