One of my favorite things about connecting with peers on a project is how the back and forth helps me and others on the team figure out what it is that they are really trying to say. Some articulations below
F: I like your simplified movements, we can work on that, but definitely better than my wandering…
X: I may have gone too simple with the movement which helps me realize that it’s not simple that I’m after, but clear feedback on which sprite is doing what.
F: I agree on giving some sort of control [for the tempo], maybe even better than actual Scratch sliders could be the possibility of moving the sprites themselves and mapping (say) y position to tempo
X: Agreed. I made a version with sliders. They are ugly and hard to control
I like your idea about moving the sprite along the Y axis to change the tempo of each sprite. This approach reminds me of a theremin, how the position of one hand controls the pitch and the position of the other controls the volume.