Musical-factor data and processing a chord for use in an electronical musical instrument

A chord processing device for use in an electronic musical instrument, said chord processing device comprising:

• character-data input means for inputting character data;
• first conversion means for converting the character data input by said character-data input means in a chord-root input state into chord type data representing a type of a chord to be performed;
• second conversion means for converting the character data input by said character-data input means in a chord-type input state into chord root data representing a root of the chord;
• first output means for outputting the chord type data converted by said first conversion means;
• second output means for outputting the chord root data converted by said second conversion means;
• and
• chord processing means for processing the chord type data output by said first output means and the chord root data output by said second output means.

A chord processing device for use in an electronic musical instrument, said chord processing device comprising:

• a plurality of pitch input means for inputting pitch data;
• chord-type conversion means for converting the pitch data input by only one of the plurality of pitch input means into chord type data, representing a type of chord to be performed;
• chord-root conversion means for converting the pitch data input by only another one of the plurality of pitch input means, separate from the pitch input means for the chord type data, into chord root data, representing a root of the chord to be performed;
• first output means for outputting the chord type data converted by said chord-type conversion means;
• second output means for outputting the chord root data converted by said chord-root conversion means;
• and
• chord processing means for processing the chord type data output by said first output means and the chord root data output by said second output means.

A chord processing device for use in an electronic musical instrument, said chord processing device comprising:

• chord storing means for storing chord type data representing types of chords and chord root data representing roots of chords;
• display means for displaying the types of chords and the roots of chords;
• first reading means for reading the chord type data and the chord root data from said chord storing means in order of progress of an automatic performance;
• first display controlling means for controlling said display means to display the chord type data and the chord root data read by said first reading means;
• second reading means for reading chord type data and chord root data, respectively, subsequent to the chord type data and the chord root data read by the first reading means;
• and
• second display controlling means for controlling said display means to display the chord type data and the chord root data read by said second reading means.

A chord processing device for use in an electronic musical instrument said chord processing device comprising:

• chord storing means for storing chord type data representing types of chords and chord root data representing types of chords and chord root data representing roots of chords;
• display means for displaying the types of chords and roots of chords;
• first reading means for reading the chord type data and the chord root data from the chord storing means in order of progress of an automatic performance;
• second reading means for reading chord type data and chord root data, respectively, subsequent to the chord type data and the chord root data read by the first reading means;
• and
• display controlling means for controlling the display means to simultaneously display the chord type data and chord root data read by said first reading means and the subsequent chord type data and chord root data read by said second reading means.

A method of changing a musical-factor data in an electronic musical instrument comprising the steps of:

• (A) storing a plurality of performance information;
• (B) reading the performance information stored in said step (A) in order of progress of an automatic performance;
• (C) performing a piece of music according to the performance information read in said step (B);
• (D) repeating a reading of the performance information read in said step (B);
• (E) detecting a repetition in said step (D);
• and
• (F) changing the musical-factor data representing musical factor associated with the performance information, based on the detection of the repetition in said step (E).