Because you know, when you look at a piece of music -- for example, if I just open my little motorbike bag -- we have here, hopefully, a piece of music that is full of little black dots on the page.
因为你知道，举个例子，当你看到一段音乐 现在让我来打开我的小机车包，希望能找到 一份画满了黑色小圆点的乐谱