music.lua

local tool = peripheral.wrap("right")
local instrument = "harp"

function play(note)
    tool.playNote(instrument, note)
end

while true do
    play(22)
    sleep(0.5)
    play(21)
    sleep(0.5)
    play(22)
    sleep(0.5)
    play(22)
    sleep(0.5)
end