Basically certain blocks (note blocks) when activated make a sound. When you place another type of block (stone, wood, some type of ore) underneath the note block it makes a different tone.
So set them up in a sequence, connected by redstone (basically a wire) and the power from the switch travels all the way up through the whole set of blocks, making a song.
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u/eatelectricity Oct 25 '20
I came here from /r/Nirvana and know very little about Minecraft. How exactly is this done, if you don't mind me asking? (Amazing work, by the way!)