Vietnamese pop ballad with soft swung acoustic guitar, brushed drums, warm bass, and a plaintive piano line; verse stays intimate and sparse, pre-chorus opens with rising strings and breathy doubles, chorus lands on a short unforgettable anchor with stacked harmonies and a small drum lift. Bridge strips to piano and vocal, then final chorus returns fuller with ad-lib echoes, gentle risers, and a bright but aching mix, close-mic and emotional.