This restaurant does not possess an unusual amount of tranquility. There is a mild hubbub here, punctuated by some annoying laughs.
It is a bit coldo, however.
All of a sudden, I hear a cricket repeatedly chirping. I ask the waitress, and she investigates. My guess is that it's an attempt at tranquil sound effects, but it turns out not to be. The waitress hears it, but can't identify it either. It's probably some dingbat who set their phone's ringtone to a cricket chirp, without realising they were too senile to answer it, should it ring.
It's gone now. :)