 I can tell you from my own perspective, when I was a kid, I was listening mostly to classical music, it's the way I was raised, and then rock and roll in the late 50s. And to me, the big change in my life was, I had heard a lot of Bach, I'd heard the 5th Brandenburg, and I loved the B minor suite for flute and strings, and a few other pieces, so Bach was very special to me. But then I heard the B minor mass, the first part, the first movement, the Kyrie Eleison.