Different performers' interpretations of the same music can vary widely. Composers and song writers who present their own music are interpreting,
just as much as those who perform the music of others or folk music. The standard body of choices and techniques present at a given
time and a given place is referred to as performance practice, where as interpretation is generally used to mean either
individual choices of a performer, or an aspect of music which is not clear, and therefore has a standard interpretation.