主要内容包括：儿童心理学的研究内容、音乐心理学与声乐心理学的概念、儿童声乐心理特点。

They are: study content of child psychology, the concept induction of child singing psychology, the psychological characteristics of child singing study.

youdao

主要内容包括：儿童心理学的研究内容、音乐心理学与声乐心理学的概念、儿童声乐心理特点。

They are: study content of child psychology, the concept induction of child singing psychology, the psychological characteristics of child singing study.

youdao