Musopen - Unlimited royalty free music sheets, tracks and textbooks 🎶
Gnoosic - Even if you don't know what you are looking for - gnod will find it.
Musicroamer - A visual Pandora for discovering new music
Mixkit - High-quality stock videos that are completely free.
TasteDive - TasteDive recommends similar music (musicians, bands), movies, TV shows, books, authors and games, based on what you like.
Songstack - Swipe to discover new music for Spotify