Chanting has existed for centuries. For example, there are wonderful recordings of Gregorian chants, chants from India, chants sung by Catholic or Buddhist monks and other religious or secular groups. They tend to be repetitive with the goal of deepening our spiritual lives, whatever they may be, or at the very least, to help bring peaceful feelings into our beings.
There is a large variety of music that taps into our souls. For example, I am almost finished recording music that I've written for a new CD (or audio tape), Journey Within. It has been a truly inspirational journey, one that has been incredibly healing. It was all written from my soul, and those qualities are heard throughout every piece.