Hello, I’ve been trying to find out how to add music to projects. Do any of you know how to add music to scratch projects for free?

when green flag clicked
play sound [ ?]

You can upload the music the same as any other audio file. However, most songs are copyrighted, and hence it is illegal to upload them to scratch. If you are looking for music for your project, try searching for “Royalty Free Music” on google, and make sure to carefully read over the licensing rights for the site you download the music from. Many sites will offer some music for free, but will require you to make a reference in your work that tells people where and when you got the audio.