| 摘要 |
In an electronic musical instrument having a function to perform auto-playing with reading out a quantity of auto-play data every time any key is operated, a guide display comprising a plurality of display lines is made to indicate timings of key operation. In the display, measure lines (23) and beat lines (24) are displayed in addition to black circles (22) for indicating operation timings. Thereby, more pieces of guide information than a conventional one can be displayed at once, besides, guidance to a far future can be given. This makes it easy to recognize the musical time pattern of the auto-play data and which beat each black circle (22) belongs to.
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