Harmony generation device and storage medium

A storage medium storing a program for causing a computer to generate harmony according to an input voice, the program comprising:

• a voice input step of inputting a voice of a user;
• a performance input step of inputting performance information of a musical instrument;
• a chord determination step of determining a chord of the performance information input by the performance input step;
• a pitch shift step of shifting a pitch of the voice input by the voice input step on the basis of the chord determined by the chord determination step in order to obtain a pitch tone;
• and
• an output step of outputting the pitch tone obtained from the shifting of the voice input through the voice input step by the pitch shift step, such that the program generates harmony according to the input voice;
• and
• a key storage step of storing a key of a piece of music being played,
• wherein in the pitch shift step, the pitch of the voice input by the voice input step is shifted on the basis of the chord determined by the chord determination step and the key stored by the key storage step,
• wherein in the pitch shift step, when a tone of a note close to the pitch of the voice input by the voice input step is a component tone included in component tones of a scale based on the key stored by the key storage step, the pitch of the voice input by the voice input step is shifted such that a sound with the same note or notes as one or two or more component tones that differ in pitch from the component tone is generated, and
• when a tone of a note close to the pitch of the voice input by the voice input step is not included in the component tones of the scale based on the key stored by the key storage step, the pitch of the voice input by the voice input step is shifted such that a sound with the same note or notes as one or two or more component tones that are among component tones of the chord determined by the chord determination step and that are not the tone of the note close to the pitch of the voice input by the voice input step is generated.

A harmony generation method comprising:

• inputting a voice by a voice input portion;
• inputting performance information of a musical instrument by a performance input portion;
• determining a chord of the performance information by a chord determination portion;
• shifting a pitch of the voice by a pitch shift portion on the basis of the chord determined by the chord determination portion, in order to obtain a pitch tone;
• outputting the pitch tone obtained from the shifting of the voice by an output portion;
• and
• storing a key of a piece of music being played in a key storage portion,
• wherein the pitch of the voice is shifted on the basis of the chord determined by the chord determination portion and the key stored in the key storage portion,
• wherein when a tone of a note close to the pitch of the voice input through the voice input portion is a component tone included in component tones of a scale based on the key stored in the key storage portion, the pitch of the voice input through the voice input portion is shifted such that a sound with the same note or notes as one or two or more component tones that differ in pitch from the component tone is generated.