声乐作品常将同一句歌词配上不同的旋律而形成词乐音调关系的变化。文章运用可视化方法呈现了歌词语音和旋律音高的频率峰值轮廓线，根据二者走向关系分为“词乐轮廓相符乐句”和“词乐轮廓不符乐句”两类，前者用近似语言陈述的方式传达歌词的语义信息，而后者主要担负着抒情和发展功能。实验选取音乐专业和非音乐专业大学生各31名来重复聆听两种词乐关系的乐句，并进行记忆和偏好的比对判断。结果表明：所有被试对相符乐句的记忆显著大于不符乐句；音乐专业学生对相符乐句的记忆显著高于非音乐专业学生。但所有被试对词乐轮廓不符的乐句更为喜欢。可见，两种词乐轮廓关系担负着不同的结构功能和表现意义，而符合聆听者感知规律的词乐关系，是聆听者在歌声中获得审美愉悦的关键。

In vocal works,it is common to set the same line of lyrics with different melodies to create variations in the relationship between lyrics and melody.This article uses a visualization approach to present the frequency peak contour lines of both intonation of lyrics and pitches of melody,categorizing their relationships into two types: “consistent”and“inconsistent”.When the lyrics-melody relationship is consistent,the phrases convey the semantic information of the lyrics in a similar manner to spoken statement,while the lyrics-melody relationship is inconsistent,phrases primarily bear the functions of emotional expression and development.62 college students were selected to participate in the experiment with 31 music majors and another 31 non-music majors.All the participants were asked to listen to two types of lyrics-melody relationship phrases repeatedly and after each listening, they were asked to judge which phrase they could memorize more impressively and which phrase they prefer more.The results showed that all participants had significantly better memory for lyrics-melody consistent phrases than inconsistent ones,and the music students had apparently better memory for consistent phrases than non-music students. More interestingly, participants all preferred those inconsistent lyrics-melody contour phrases.It could be seen that the two types of lyrics- melody relationships bear different structural functions and expressive meanings,and the lyrics-melody relationship that conforms to the listener's perceptual rules is the key factor for the listeners to obtain aesthetic pleasure in songs.