美国研制成一种没有弦的激光竖琴。竖琴与电子计算机连接 ,使用时 ,演奏者用手指在琴上弹奏 ,计算机结口会配合手指的弹奏改变声音。随着手指的快速移动 ,就能产生轻快、响亮的音乐 ,弹奏速度减慢便会响起圆润、柔和的音乐。无弦激光竖琴@李玲玲 The United States developed a non-chord laser harp. The harp is connected to a computer. When in use, the player plays the finger on the keyboard and the computer knuckle changes the sound in accordance with the finger’s play. With the rapid movement of your fingers, you can produce light, loud music, playing slow, it will ring mellow, soft music. No string laser harp @ Lingling