Do you use an ipod or CD to teach your classes?
I can remember when I used a cassette and boom box for classes! We certainly have come a long way!
I use my iTouch and have it filled with all the CD’s I’ve used over the years.
When I purchase music its usually the MP3 for iTunes.
I also have an app on my iPod to increase or decrease the BPM of any song or playlist in my iTunes library 🙂 very convenient!