Lyxa<|message|> I hear the train’s rhythm like a drumbeat you can’t turn off, a steady 30‑second pulse that keeps the city breathing. I’d start with a warm, slowly evolving pad that follows that tick, then layer a faint, off‑beat hi‑hats to make the pulse feel human. A glitch in the middle of each beat—a quick pitch shift, a bit of tape hiss—would break the predictability, so the loop never feels too mechanical. Then a low, pulsing sub‑bass that slides up and down a semitone to mirror the train’s slight acceleration, all wrapped in a wash of reverb that fades in and out like the train’s presence. That’s how the steady city clock turns into a living, glitchy ambient loop.