1. A pitch curve generation apparatus comprising: a singing synthesizing database storing therein, for each individual one of a plurality of singing persons, 1) melody component parameters defining a melody component model that represents a variation component presumed to be representative of a melody among variation over time in fundamental frequency component between notes in singing voices of the singing person, and 2) an identifier indicative of a combination of one or more notes of which fundamental frequency component variation over time is represented by the melody component model, sets of the melody component parameters and the identifiers being stored in said singing synthesizing database in a form classified according to the singing persons; an input section to which are input singing synthesizing score data representative of a musical score of a singing music piece and information designating any one of the singing persons for which the melody component parameters are stored in said singing synthesizing database; and a pitch curve generation section which synthesizes a pitch curve of a melody of a singing music piece, represented by the singing synthesizing score data, on the basis of a melody component model defined by the melody component parameters, stored in said singing synthesizing database for the singing person designated by the information inputted via said input section, and a time series of notes represented by the singing synthesizing score data.
1. A pitch curve generation apparatus comprising: a singing synthesizing database storing therein, for each individual one of a plurality of singing persons, 1) melody component parameters defining a melody component model that represents a variation component presumed to be representative of a melody among variation over time in fundamental frequency component between notes in singing voices of the singing person, and 2) an identifier indicative of a combination of one or more notes of which fundamental frequency component variation over time is represented by the melody component model, sets of the melody component parameters and the identifiers being stored in said singing synthesizing database in a form classified according to the singing persons; an input section to which are input singing synthesizing score data representative of a musical score of a singing music piece and information designating any one of the singing persons for which the melody component parameters are stored in said singing synthesizing database; and a pitch curve generation section which synthesizes a pitch curve of a melody of a singing music piece, represented by the singing synthesizing score data, on the basis of a melody component model defined by the melody component parameters, stored in said singing synthesizing database for the singing person designated by the information inputted via said input section, and a time series of notes represented by the singing synthesizing score data. 2. A singing synthesizing apparatus for synthesizing singing by use of the pitch curve generation apparatus recited in claim 1 , said singing synthesizing apparatus comprises: a sound source which generates a sound signal in accordance with a pitch curve of a melody of a singing music piece, represented by the singing synthesizing score data, generated by the pitch curve generation apparatus; and a filter section which performs a filter process, corresponding to phonemes constituting lyrics of the singing music piece, on the sound signal outputted from said sound source.