https://drive.google.com/drive/folders/1N5mMs5dpp58plLJzPXMQRJ_1XhatQKyD
Once every 2 seconds, change the three notes (pitches), played by the patcher, to random values：
I added a random to the first note from 100-500 so that it would randomly select one in the range
For the duration of 2 seconds, we will hear three specific notes played by the arpeggiator patch, then, after 2 seconds, those three notes change and we hear the next three notes for the duration of 2 seconds:
By +4 and +7, the other two notes combined with the first one make a simple arpeggiator. Since the metro is 666 (2000/2), every 2 seconds the note would change.