Produce a lofi style track that embodies a tranquil and calm ambiance, ideal for a metropolitan skyline backdrop. The rhythm ought to incorporate faint city noises, such as remote car honks and muted city chatter, to convey the sensation of a peaceful city evening. The main rhythm should be a calm, downtempo beat with a fluid, consistent flow, emphasized by soft melodic elements like a faint piano or a restrained electric guitar. The rhythm should include a welcoming bass line that offers a comfortable depth, harmonizing with the bright, airy treble and creating a well-rounded, engulfing soundscape. The overall impact should be calming and meditative, ideal for relaxation, study, or simply savoring a tranquil moment in the midst of city life. The track should last approximately 90 seconds.