In this video, Joshua Casper shows you how to unlock a massive secret in Ableton Live's ‘Simple Delay’ device. To put it simply, you see what I did there, it's the ‘Re-pitch’ algorithm.
You can access the Re-pitch option by right-clicking the Simple Delay's title bar.
Once activated, when you change the delay frequency over time it will pitch the delay up or down. He uses this effect in this project to create a pitched riser out of an element of the project.