Today on the First 40 Miles, music on or off the trail is one of the great pleasures in life.  Today we’ll talk about how to incorporate music on your backpacking trip:  what to bring and what not to bring.  Then, a top 5 list that will help you plan your personal playlist.  Next on the SUMMIT Gear Review, a three stringed instrument, that’s trail worthy and is impossible to play wrong.  And our Backpack Hack has morphed today into Backpack Homework.