PURPOSE: To let a singer to concentrate on his singing by displaying the singer's image on the audience's monitors through composite and not displaying his own image on the singer's monitor screen.

CONSTITUTION: Musical sounds of a music and the voice of the singer inputted from a microphone 3 are outputted from a speaker 6 and the lyric of the music and a prescribed background picture are displayed on display means 5 and 9. The first display means 5 displays the video which is made by composing the lyric and the prescribed background picture only. On the other hand, the second display means 9 displays the video which is made by composing the image of the singer taken by an image pickup means, the lyric and the prescribed background picture and the singer's own image is not displayed on the singer's monitor so that the singer concentrates on his singing.