Yes, this is actual free stuff.
No strings, no sign-ups, just good stuff for you to use in your classroom. You’re free to copy and share these documents as long as they are distributed in their entirety.
Drama Notebook hails itself as the world’s best site for Drama teachers. They have a small selection of straight-up free resources.They do offer a free trial on their library of resources to support the dramatic arts. Teachers using this resource have the choice to pay monthly or receive some savings by subscribing annually to their site.
Flat is an excellent music notation editor that works directly with GSuite. You install it from the Chrome store into your Chrome account and you will have a sheet music editor that allows for collaborative editing and creation.