For my time machine, I took inspiration from nursery rhyme rounds, but I wanted to play with altering the pitches at random. I tried to do so in a way that would still make a chord, using a major third and a major fifth. I used two different song samples, “Twinkle Twinkle Little Star” and “Yesterday” by the Beatles to demonstrate the patch (the latter is in the sample code). For any song recorded, you need the BPM (which is labeled in the code) and the number of beats you want to delay.

Max Patch:

Sample Songs: