Notice how the vocals sound identical to the original, even when the instrumentals switch up and get even faster.

请注意，人声听起来与原声完全相同，即便是在乐声发生转变甚至变得更急促的情况下依然如此。

The lyrics and the instrumental are covered by copyrights.

歌词和乐器受版权保护。

Well, it seems songs no longer have an 'intro' – the instrumental piece of music that's played before the singing begins.

好吧，似乎歌曲不再有" 序曲" ——在歌声开始之前演奏的纯音乐部分。

So you can look at the third person of the past tense only as a list or you might, if languages that have cases, you can look at just the instrumental case, let's say in Russian or Slavic languages.

你可以把过去时态第三人称单独列个表，或者你可能，如果一些语言有格，你可以只看工具格，比如说俄语或斯拉夫语。