About "clashing instruments".. ..I never heard such a thing in my whole life. In fact, there is no reason why two different sounds should "clash" except missing harmony (i.e. not in tune, so that the composition doesn't make sense from the beginning). "Clashing" instruments is a myth. You can put 200 musician in one room and nothing clashes (as long they are "musicians"). I really can't wait to hear such a "clash", would love to hear an example once in my life.