I had this rather odd thought last night and wondered what you all would choose? I had the thought while listening to Stairway to Heaven, Led Zep. I really think it's a great song, and deserves to be at the top of the greatest songs of all time countdowns, which used to be a let down 'cause it was always so expected every new years'. But really, it is a piece that encapsulates varied and deep emotions and styles, and without giving it too much thought, I think I would choose that to share with folks in the 14th century, and give them a glimpse of the future.