A strong concentration of 声 波 能量 at a 特定 音高 All 声 that have a 音高 are made up or 分音

GuitShot

A 声谱 of a guitar 声 in which you can 清楚 see orange stripes these are the many 分音 which make up the guitar 声

The 关系 between these 分音 affects the 品质 of the 声 that we 听