How does a change in speed change the change in pitch?

Acceleration

Direction.

It's "chain chain chain" and it's called Chain of Fools by Aretha Franklin.

Twins sang the song Change Change Change. This was the theme song for the movie Twins Effect starring Jackie Chan. Other possibility: It's "chain chain chain" and it's called Chain of Fools by Aretha...

The acceleration changes if speed or direction changes