Aesop Rock: All Day

I recently downloaded this Nike+ Original when I was looking for some new work out music.  ITS GREAT!  Below is  the  write up on iTunes:

Turn your run into an adventure.  The ever-changing soundscape of All Day, an uninterrupted 45-minutes composition by New York-based MC/producer Aesop Rock, transforms a regular workout into something fresh and unpredictable.  Beats propel you forward, patterns let you find your rhythm, lyrics inspire.  "I wanted to create something that evolved enough that the sound was constantly fresh and attractive, as if the runner were moving through a set of different cities or landscapes.  There had to be a new element every 30 seconds or so (a new riff, a new layer, a new drum pattern) as other elements faded into the distance.  Basically, I had to keep the scenery shifting while maintaining the ‘push.’  Setting this as my goal allowed me to dabble in some sounds that I had never tried before."  This commissioned score is the third installment of the Nike+ Original Run series, available only at Nike Sport Music on iTunes.