吉他是弹拨乐器,其发音原理是手指拨动琴弦,琴弦的振动通过弦枕(saddle)等传导到共鸣箱而发出乐音。音高的改变是通过左手按住不同的音品(fret)改变弦长从而改变音高。当左手按住音品左侧,右手拨动琴弦,此时琴弦的振幅距离音品很近,当琴弦振动和音品接触的时候,所发出的“咝咝”声就叫做打品(buzzing)。严重的打品现 The guitar is a plucked instrument whose principle of articulation is that a finger strikes a string and that the vibration of the string is transmitted to the resonance box through a saddle or the like and emits a musical sound. The change in pitch is to change the pitch by changing the chord by holding different frets with the left hand. When the left hand hold down the left side of the product, the right hand toggles the string, the amplitude of the string is very close to the product. When the string vibrates and the product is touched, the sound of “咝 咝” is called playing Buzzing. Serious present goods