createSongFromNoteBlocks

function checkBlock()
    local bool, data = turtle.inspect()
    while not bool do
        turn("r")
        bool, data = turtle.inspect()
    end
    parseBlock(data)
end

function parseNotes(data)
    song = fs.open("song","a")
    song.writeLine(data.state.instrument..":"..data.state.note)
    turtle.dig()
    turtle.forward()
    turn("l")
    local bool, data1 = turtle.inspect()
    if (bool) then
        song.writeLine(data1.state.instrument..":"..data1.state.note)
    end
    turn("r")
    turn("r")
    local bool1, data2 = turtle.inspect()
    if (bool1) then
        song.writeLine(data2.state.instrument..":"..data2.state.note)
    end
    song.close()
    turn("l")
end

function parseBlock(data)
    if(data.name == "minecraft:repeater") then
        song = fs.open("song", "a")
        song.writeLine("delay:"..data.state.delay)
        turtle.dig()
        turtle.forward()
        song.close()
    elseif(data.name == "minecraft:note_block") then
        parseNotes(data)
    else
        turtle.dig()
        turtle.forward()
    end
end

function turn(dir)
    if(dir == "r")then
        turtle.turnRight()
    elseif(dir == "l")then
        turtle.turnLeft()
    end
end

while true do
  checkBlock()
end