"Music is an important and extremely useful tool in the way we learn and to deny its power is a waste of a truly (1) ………. resource" (Kristian D. Olson). Though some would look at music as a small addition in the progression of humanity, it is in fact a (2) .................... greater force; for some, it defines their very existence. The fact is, music is a driving force in society; it has been present since the beginning of man. The average person spends several hours a day (3) ………. to music, whether they see it as a main activity or just as something to take up space in the background. It is not surprising, then, that music has a great effect (4) ………. how humans think and act, possibly even affecting intelligence. Several studies have been conducted on this theory and the agreement seems (5) ………. that music has the capacity for both positive and negative effects.