This is a recreation of the song "Your Door Was Locked!" by Element Animation using Note Blocks. It was made in the snapshot 19w09a, because of the new note blocks added. It should still work in later versions as well.

The song may not run smoothly on a server, so I would suggest playing it singleplayer only.

Don't play the song twice in a row without flying over it between plays. This is because, for some weird reason, if you play the song, it will sometimes leave some stray active redstone, causing the whole thing to get messed up. If you fly over it and a part of the song is playing, follow it until it finishes, then fly back to the start of the song.