| 摘要 |
In accordance with the progress of a performance, a CPU 10 supplies word data indicative of words to be displayed. The CPU obtains a color change function passing coordinates which are specified by color change function data indicative of: a length of each of sections which are obtained by dividing a word display region to be displayed in accordance with the word data; and a time period required for changing a color of the section. The CPU instructs a color change in accordance with the color change function. A video circuit 18 changes the color of the words which are displayed on the basis of the word data, in accordance with the color change instructions, and a monitor 19 displays the words.
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