They began to tune up, and suddenly the auditorium was filled with a single sound - the most alive, three-dimensional thing I had ever heard. It made the hairs on my skin stand up, my breath catch in my throat....I felt the music like a physical thing; it didn't just sit in my ears, it flowed through me, around me, made my senses vibrate. It made my skin prickle and my palms dampen...It was the most beautiful thing I had ever heard.