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emotional birthday song for dad, ballad intro with soft piano and warm pad, slow tempo intro (70 bpm), gentle male vocal feeling, gradually building arrangement, adding acoustic guitar and strings, transition to mid-tempo pop (95 bpm), light drums and bass entering, warm family celebration mood, final chorus upbeat and joyful (110 bpm), full band arrangement, bright piano, acoustic guitar, soft drums, heartwarming, hopeful, emotional but happy, korean family song style 기쁘게,빠르게,