Horatio the Wise

Funnily enough I have been trying to animate a character with this recorder this week. Nothing as elegant as this but i've made the logic so that the player can input notes to play. It will also record and play back the notes in a loop

Agree that there must be some sort of collision going on when it does it faster. Perhaps this could be resolved with the physical properties in the keyframes instead? Weird how it doesn't appear to do it when you play the timelinein edit mode

It's weird isn't it. I don't fully understand what's causing it but I did discover that by spacing out the last few keyframes , from A onwards, it remains intact. So if you're happy to have a slightly slower transition, that works.

The last few key frames for the pointer finger.

I think the finger has a half spin at the end of the animation. I made the recorder non collidable then re did the last two key frames. It made the finger spin around at the end of the animation. Then went back to the original spot. You should check the

Not sure, I would adjust you joints to be aline with the fingers. It looks like a collision somewhere.