During lockdown I toyed with generating insect sounds with synthesizers. Never thought of making them into long tracks. Will look into it now. It would be the

During lockdown I toyed with generating insect sounds with synthesizers. Never thought of making them into long tracks. Will look into it now. It would be the opposite of what you're after, though, as it's completely artificial. But! It doesn't loop. I can make it of any length, and with some astute randomization it never produces the exact same sequence twice.