Using Music Technology in Phys Ed

In today's technological world students younger than ever have music with them on the go.  Music is such an intriguingly mobile thing because most mobile phones include a music/mp3 option.  In physical education there is a push not only by students but other staff and often parents to allow students free use of music in physical activity.  I myself have no problem letting a student listen to music in any class for that matter as long as they stay on task and work is completed.  In my warmup's to lessons in the gym I will definitely be using a music influence and the lessons themselves for that matter once it gets established.  Apps like Songza help for choosing playlists that fit a classes wants or needs.  I figure the days of playing what the teacher likes are over and I will adjust to the needs of the students.  It may be easier for me than others because I am still young and may have the same interest in music as the students in for example high school have today.  As long as the music is used correctly and if out loud free from inappropriate lyrics I find music to be a useful tool especially in phys ed moving forward.