| 摘要 |
In an electronic musical instrument of digital processing type, key codes are stored in a memory channel by channel for respective tone productions. The stored key codes are utilized for determining pitches of respective tones to be produced. Upon depression of new keys, the formerly stored key codes are automatically added or subtracted channel by channel with the value for a certain note step toward the new key codes at a certain clock rate defining a glissando speed. Thus automatic glissando performances are easily realized.
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