The modernist views hold that classical music is considered primarily a written musical tradition, preserved in music notation, as opposed to being transmitted orally, by rote, or by recordings of particular performances.[citation needed] While there are differences between particular performances of a classical work, a piece of classical music is generally held to transcend any interpretation of it. The use of musical notation is an effective method for transmitting classical music, since the written music <answer>contains the technical instructions for performing the work</answer>.
Why is written musical notation effective? 
contains the technical instructions for performing the work