《广陵散》是我国著名古琴古曲之一,此曲曲体结构庞大,构思严谨,旋律丰富,技巧复杂高超,曲调慷慨激昂,有“曲之师长”之称。本文以龚一弹奏的《广陵散》为音响形式,通过对两个对比主题音调的音色处理进行分析,在琴曲的音乐表现力与思想内涵上,有着一定审美的意义。 “Guangling San” is one of the famous Guqin ancient songs in our country. The structure of this song is huge, its concept is rigorous, the melody is rich, the technique is complicated and superb, the melody is impassioned and impassioned. In this paper, “Guangling San” played by Gong Yi is an audio form. Through the analysis of the tone colors of the two contrasting theme tones, it has certain aesthetic meaning in the music expressiveness and ideological connotation of the melody.