Music and Motivation

Music has a huge roll in motivating people to do or complete certain tasks. 
"The right tunes can be a great aid for those of us who still need a little push to get ourselves moving. "In fact, it is sometimes banned (along with steroids and stimulant drugs) to prevent athletes from gaining an unfair advantage during competitions. Why? Because of its capacity to energize and increase endurance. One of music’s energizing effects comes from its ability to engage the body’s sympathetic nervous system. The activation of this system readies the body for action whenever we face a challenge in our environment."

That is the reason why we tend to listen to music while we workout or when we have to do a tedious task, in order to get our body moving and get a rush of energy when our favorite song plays. "Recent results suggest further that a repetitive beat, such as that in a musical rhythm, synchronizes brainwaves in ways that may be particularly helpful in coupling what you hear with how you move. The co-ordination and execution of repetitive muscle movements may be made more efficient by matching the movements to a musical beat. This may explain why individuals strategically running to a beat run faster and use less oxygen than those who do not pace themselves with music."

http://www.theglobeandmail.com/life/health-and-fitness/health/conditions/why-does-music-motivate-us/article542629/