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

Let's listen to John Kander sit on one pitch level and then suddenly raise the whole thing up.

我们听到约翰·肯德尔选择了一个音高,然后突然升高了

耶鲁公开课 - 聆听音乐课程节选