音乐的主导要素是旋律,而组成旋律的基本要素是旋律线(音高)、调式、节奏等等。旋律的发展,从广义上讲,就是旋律线按照某种特定的节奏特点发展、变化的过程。音高、调式等要素,如果脱离了节奏就不能够构成旋律。反之,节奏离开了旋律却能单独的存在,比如各种没有固定音高的打击乐器就能奏出各种不同情绪的节奏来。节奏可以脱离其他要素,作为一种单独的艺术形式出现。一、节奏的意义郭沫若先生在《论节奏》中指出:“构 The dominant element of music is melody, and the basic elements of the composition of the melody melody line (pitch), style, rhythm and so on. Melody development, broadly speaking, is the melody line according to a specific rhythm characteristics of the development and change process. Pitch, tone and other elements, if not from the rhythm can not form a melody. On the other hand, rhythms leave the melody but can exist alone, for example, a variety of percussion instruments without fixed pitch can play a variety of different rhythms of emotions. Rhythm can be separated from other elements, as a separate art form. First, the significance of rhythm Mr. Guo Moruo pointed out in the ”on the rhythm“: ”structure