How to save a Rising Sun

Now that I've learned enough from my research, it's time to face my fears.  I've discovered that to finally bring back the sun, I need to unload enough Tinkerbells, as their essence contains all the light needed for the process. A certain melody allows me to calm them down; it's the only way to free them.  Even so, I have to be careful, as the marshes where they are are swarming with Trumpuets... …