To give a correct pitch is the basic and key point to play bamboo flute.

把竹笛的音高吹准，是演奏笛曲的基础与关键。

youdao

To give a correct pitch is the basic and key point to play bamboo flute.

把竹笛的音高吹准，是演奏笛曲的基础与关键。

youdao