Electronic musical instrument to generate musical tones to imitate a stringed instrument

摘要

Provided are an electronic musical instrument, computer storage device, and method for generating tone. A sound source in an electronic musical instrument generates a first tone at a first pitch in response to a first tone generation instruction received by an input device of the electronic musical instrument. A second tone generation instruction is received to generate a second tone at a second pitch while generating the first tone at the sound source. A determination is made of a pitch difference of the first and the second pitches. The sound source is controlled to generate the second tone and to not generate the first tone in response to determining that the pitch difference does not exceed a predetermined number of tones. The sound source is controlled to generate the second tone in response to determining that the pitch difference exceeds the predetermined number of tones.

主权项

1. An electronic musical instrument comprising:
an input device for inputting a tone generation instruction for a tone with a predetermined pitch; a tone generation device that generates a tone with a predetermined pitch based on a tone generation instruction inputted by the input device to imitate a string instrument; a pitch difference obtaining device that obtains a pitch difference between a current tone generation instruction and a previous tone generation instruction in response to the tone generation instruction inputted by the input device; a time difference obtaining device that obtains a time difference between the current tone generation instruction and the previous tone generation instruction in response to the tone generation instruction inputted by the input device; and a control device that operates in a poly mode to generate multiple tones at the same time and that controls the tone generation device to:
not generate a previous tone with a previous pitch corresponding to the previous tone generation instruction and to generate a current tone with a current pitch corresponding to the current tone generation instruction in response to determining that the pitch difference equals a predetermined number of tones or less and that the time difference equals a predetermined time or less, wherein such determinations indicate that the current and previous pitches occur on a same string of the imitated string instrument; andgenerate the current tone with the current pitch while generating the previous tone with the previous pitch in response to determining one of (1) that the pitch difference exceeds the predetermined number of tones or (2) that the pitch difference does not exceed the predetermined number of tones and that the time difference exceeds the predetermined time.