There is a song on Moody Blues "Days of Future Passed" that has probably one of the highest notes that I've heard in a song. I believe it is "Evening Time to Get Away". It floats back and forth between the right and left speaker a couple times throughout the song. I only have it on vinyl. I can only imagine what the SACD would be like. The ribbons on my Infinity speakers throw that note out like its coming from behind the listener.
Have fun, JD
Have fun, JD