Well, you know, it goes back to the beginning of the formation of the personal computer industry, which--that sounds like a long time ago.

嗯，你知道，这要追溯到,个人电脑产业的形成初期，听起来相当久远了。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选

Well,if you go back to the formation of musical notation from the ninth through the twelfth centuries we see that very early on these two dimensions of music the two axes of music that we talked about before pitch vertically and duration horizontally, are in place and we have these spots in this grid.

回顾一下从公元九世纪至二十世纪,音乐记谱法的历史形成过程,我们可以看出,音乐的两个维度,就是我们之前提到的音乐的两个轴,纵轴是音高,横轴是时值,在早期已经存在了,我们在这样的网格上用点记录

耶鲁公开课 - 聆听音乐课程节选