The song is in a different key than the original due to the note block 2 octave limit. It also has a faster tempo but it was either this or too slow. The note block song was initially built using Minecraft Note Block Studio, manually adding all the notes by ear. The note blocks were then converted to command blocks to spawn note blocks in the area shown in the video via /setblock commands. I used the pling.ogg note block sound for the vocals. My note block world can be downloaded from the link in the bottom right corner of my Youtube channel banner (or from the About section if you're on mobile). Thanks for watching!.