The past two weeks in our outdoor sessions we read the book:
The Listening Walk by Paul Showers

After reading the story we covered our eyes to help us use our ears!
Then we went on a listening walk of our own.
To play with sound, each family received a variety of materials.
They hung them like mobiles  from the trees and then explored how each of them sounded.

What do you have in your home that you could hang and explore sound with?