Relative age is an important descriptive aspect of music and musical materials, but it’s foolish to dismiss techniques on the basis of how long they’ve been around. Art is about truth, which is sometimes as new as BluRay and sometimes as old as dust.
We think of the cosmos very differently from the way it was thought of a few decades ago. But we breathe the same way – in and out — we have for 10,000 years.
Which of those truths is more relevant to our existence? Which one is more important to artistic expression?