As you push for that extra rep on the bench press, an extra pull-up, a kick in for that last quarter mile of your run, or that extra 30 seconds in your plank, the proper motivation from a CASS Fitness personal trainer, along with some great music can make what you may have thought to be impossible turn into your latest accomplishment.   This is my playlist from 11/19/2013   1.) Eminem - "Survival" 2.) A$AP Ferg - "Lord" ft. Bone Thugs-n-Harmony 3.) Pearl Jam - "Mind Your Manners" 4.)…