So, if we look on the periodic table, comparing, for example, s to o, if we have s it's below o, what happens to ionization energy as we go down a table?

那么，如果我们看周期表上，比较，比如，硫和氧，硫在氧下面，当我们沿着表向下看的时候,电离能是怎么变化的？

麻省理工公开课 - 化学原理课程节选

If I play the D above it, it's dissonant, the D below it,it's dissonant, but let's say I go down to the A below it, allowing a little separation between the two pitches now.

如果我弹它上方的D音，这个声音是不和谐的，它下方的D音，不和谐，但是如果我弹它下方的A音，让这两个音高之间产生一点空隙。

耶鲁公开课 - 聆听音乐课程节选