Opposite Sounds

From: Isabelle
Description: Thanks for getting all these things. I’ve recreated their sounds, but the fact that one sound is very quiet and the other is loud doesn’t let the spirit inside the tree pick them up. Lend me some artifacts to combine the sounds into a single one!
Completed: The City’s energy penetrated the steam whistle, and then there was a click of the flash that frightened the butterflies, making them flutter their wings. Something fell from the camphor tree: the spirit revealed to us a vessel filled with sounds. I hear the barrel organ’s melody and the creek fountain’s murmur.