Autumn waltz ballad, moderate tempo (104 BPM), clear waltz swing with a gentle rise in the outro. Female vocal, bright and open tone, no whispery delivery. Lively string section, airy woodwinds, subtle harp glissando. Add a playful upward instrumental flourish in the outro — like a swirling wind dancing up into the sky. Poetic lyrics about September, October, November as three brothers, silver frost, migrating birds, blue mist, a farewell that feels like a celebration. Warm, bittersweet, with dancing energy and crisp November air.