Put it at the very start of an edit, before the main scene or message arrives, then follow it with a chime and a piano note. Put a whoosh just before it when the next shot shows a sky, a window, or a character stepping outside.
關於此聲音
Butterfly in the Sky is a short, under-three-second melodic snippet built around its title phrase, sung in a clear, gentle voice with a light, floating tune. It feels hopeful and warm, like a small lift on a grey day, and it works as a quick moment of calm cheer. The simple melody stays with you after the button stops, making the clip easy to remember and pleasant to hear again.