I was talking music with my brother a while back and mentioned that I had inadvertently tuned the SiriusXM to the Grateful Dead channel. Let it run for about 45 minutes, they never changed the tempo. Probably played 4-5 songs, but every time a new one started it was the same tempo of the one that just finished. Maybe I just got them in a bad streak, but...Late one night many moons ago, I was trying to figure out with a buddy of mine why their music didn't do anything for me, and he said it best....something along the lines that the songs just don't move up or down, they stay at the same level, you keep waiting for some excitement and it never comes.