Appropriate gear for working out with music

In a continuing collaboration with Scott over at Straight to the Bar, March is the month of Music and other audio topics. After first determing whether you should wear headphones or not, and then determining whether you should listen to calm or aggressive music, and perhaps mixing in a podcast or two, you may be wondering how to actually go about listening to that music?

Scott weighs in this week with workout gear for listening to music. He explores a few different types of headphones and ear buds, as well as how and where (and if) to wear your mp3 player.