Here’s what I learned about how crickets sound by analyzing a recording. I made this preset not key-tracked but feel free to mess with it as various cricket species sound different and your sound might need different frequencies or rate of these trrr trrr segments. The overal tempo is unstable but you can cut randomness down too if you need it. I thought a bit of randomness looks more natural.
https://drive.google.com/file/d/1wezN7ho_bxxghLPI161_1ZTcoUP3rTuR/view?usp=share_link