서아야, 반짝반짝 자라나

Bright, midtempo K-pop ballad; gentle piano and acoustic guitar under a light pop groove, warm strings in the chorus. Female vocals, soft in the verses, then open and soaring in the hook with subtle harmony stacks and a bell-like synth doubling the topline. Final chorus lifts with key change, bigger drums, and ad-lib runs that stay tender.