Round 2: Day 56 - Synchronized jog/run with the music

This morning I decided to just have a nice slow jog through all 5-6 miles without stopping. However, despite my left knee was acting up I actually did a mini interval jog and run in between! I didn't do it by timing but more by my music. I usually started to run when the singer sang the chorus and jog when they sang the verse. I did this for 2-3 songs. I felt the difference in my heartbeat by mixing up the run and the jog. Too bad my Garmin Forerunner 305 GPS Receiver With Heart Rate Monitor hasn't arrived yet, otherwise I'd be able to know if I'm always in my zone or under. For sure I won't be over my zone.