What is that called when you change the fundamental pitch in a piece, going to a different pitch level?

当你改变曲子的音高的时候,这叫什么,改变音高的层级吗

耶鲁公开课 - 聆听音乐课程节选

Because if the change was not possible on the individual level, ? on the society level,why am I doing what I am doing?

因为如果从个人层面或社会层面来说，改变都是不可能的，那我在这里干什么？

哈佛公开课 - 幸福课课程节选

So people change-- up or down in their level of happiness is a result of their experiences.

人们的快乐水平会上下变化,这是他们的经验之谈。

哈佛公开课 - 幸福课课程节选