The .zip file below has the world download.
Also, if you fly (since it’s creative) to one of the giant mushrooms, you’ll see some note blocks.
If you go to where the Redstone seems to connect, put a Button there and activate it. After that, take away the button and put a piece of Redstone in it’s place.
BTW, this is my first PMC pack, so it’s not 100% that it will work.