Appregios like Perfect Stranger

Hello dear people,br
I would be very very thanksfull about an tutorial where you explain how he did that, its start sommething like minute 04:30. Its this kind of plucky appregio who plays arround and changes so cool:br
iframe width=“100%” height=“450” scrolling=“no” frameborder=“no” src=“;auto_play=falseamp;hide_related=falseamp;visual=true”/iframebr
I tryed by myself to do something like that but it seems so difficult to keep in control of the changes etc. I really would be very happy to get some tips how to do that. This guy is amazing what hes doing in everything. Thanks in advance!br
Kind regards.

Ah, I forgot to mention if you do that tutorial it would be cool if you do that with Ableton. Thanks!