上面的好的建议。在压音之前要先掌握单音的吹奏。

The advice is good. You need to be able to play single notes well before you can bend.

youdao

在吹好单音的基础上学会压音找出“丢失”了的音符！

You can find the missing notes by bending at the base of controling single notes well.

youdao

开始的时候，我们每个人在吹单音的时候都会遇到很大的困难。坚持每天练习一点，耐心点，这样你会成功的。

All of us have had difficulties playing single notes at first. Practice a little every day, be patient and you will succeed.

youdao

Here's a group of sounds, different pitches and actually three different pitches in there, as opposed to just one pitch--one pitch, three pitches or three or four pitches, moving in different ways, kind of independent rhythmic chords, so that's the difference between monophonic, homophonic and polyphonic texture.

这是一组音,不同的音高,事实上三个不同的音高,相对于一个音高,一个音高,三个音高或四个音高,以不同方式运动,像有独立节奏的和弦,这就是单音,主音和复音织体的区别

耶鲁公开课 - 聆听音乐课程节选

We're singing below middle C and the ladies are singing up an octave but that's still monophonic texture-- those notes have the same names.

我们唱得比中央c低,而女士们高了一个八度,但这还是单音织体,这些音的音名是一样的

耶鲁公开课 - 聆听音乐课程节选