I've been learning about the doplar effect in physics, and it has me a little confused. I've been wondering about this for a while. Like for example on a vibraphone, when you spin the disks. Is the pitch actually changing due to the dopplar effect? It sounds like the fundamental stays the same, yet it sounds like it's getting higher/lower. I checked with a tuner, and it didn't show a change. Where can I find more information on this subject? Does it actually change the pitch? I don't understand. If this were the case, then wouldn't it make it impossible to play in tune with anybody? I don't get it. Can someone explain?