Terchanoff says:"Music may fairly be regarded as a serious therapeutic agent; it exercises a genuine and considerable influence on the function of the body"

It is understood the emotional effects tonality and rhythm can exert over the human body. SO much so that many thinkers, healers, composers and philosophers have studied and spoke upon the specific keys and tones that can cause a physiological response

According to the World Health Organization, health is defined as " Overall physical, mental, and social well-being and not just lack of disease or infirmity". Music is a form of Identity, it is social, it transcends cultural and language barriers and can communicate emotions where language fails

Several studies suggest that in the hospital setting that post-operation patients given periods of musical therapy had reduced need of opioid painkillers and topical analgesia . These patients exhibited a lowered pain level as well as lowered anxiety and improved mood as compared to the control group that wasn't given the experimental therapy.

The emotional/physical response of music can be measured by the release of "reward hormones" (cortisol and dopamine for example) associated with pleasure. It can also effect Testosterone levels , further enhancing mood and productivity

In a study from England, it was found out that listening to background music significantly raised efficiency in a series of experiments involving repetitive-work.

According to Dr. Teresa Lesiuk, IT specialists who listen to music complete their tasks more quickly and come up with better ideas than those who don’t, because the music improves their mood and greatly reduces anxiety.

Multiple other studies on the subject have shown that background music can be used to improve cognitive functions and productivity (study, study, study).