melograph

例句：

1. 1. The melody of the song is captured perfectly in this melograph.
   这首歌的旋律在这部音乐摄影机中被完美捕捉。
2. 2. The director used a melograph to capture the essence of the performance.
   导演使用音乐摄影机捕捉了表演的精髓。
3. 3. The melograph was used to create a visual representation of the music.
   音乐摄影机被用来创造音乐的视觉表现。