Abstract: A projecting a plurality of red pixels, green pixels, and blue pixels to display a color image on a screen. First and second green pixels differing in their positions correspond to red and blue pixels projected on the screen.

Abstract: The projection system of the present invention projects a plurality of red pixels, green pixels, and blue pixels to display a color image on a screen by projecting. In the projection system of the present invention, first and second green pixels differing in their positions correspond to red and blue pixels projected on the screen.

Abstract: A music information reproducing method and apparatus for reproducing music information containing character codes for displaying a plurality of characters on an optionally selected display screen of the apparatus and containing MIDI signals formatted on a basis of MIDI Standard. The MIDI signals contain timing clocks and sound source driving information for driving various sound sources and color change information containing color change timings for designating a character and its color change timing of the designated character. The positions of the characters displayed on the display screen are preliminarily determined by the apparatus before the music information is reproduced thereby, and the color change of the characters designated by the color change information is conducted in synchronization with the timing clocks of the MIDI signals by using the determined positions of the characters.