Re-Discovering Disco Music

What does disco music have to do with running?  For me music is everything.  I need music to run or else I'm bored.  Since I have more than 3000 songs on my iPod, you would think I do not need any more music.  But I Love Music!  I also collect Old School R&B, Disco, and Rap.  So, with extreme caution, I downloaded five new disco songs to add to my collection.  And I played all five of them to death too.  The music helped me get through 6 long miles on Saturday and 3 miles today.  I think I got my ROI on a $5 download.