3. The singing synthesizing database creation apparatus as claimed in claim 1 , wherein said melody component extraction section successively detects pitches of the singing voices, represented by the learning waveform data, in accordance with passage of time, and said melody component extraction section generates the melody component data on the basis of detected time-serial pitch data.
3. The singing synthesizing database creation apparatus as claimed in claim 1 , wherein said melody component extraction section successively detects pitches of the singing voices, represented by the learning waveform data, in accordance with passage of time, and said melody component extraction section generates the melody component data on the basis of detected time-serial pitch data. 4. The singing synthesizing database creation apparatus as claimed in claim 3 , wherein the learning score data include a train of note data representative of a melody and a train of lyrics data indicative of lyrics associated with individual notes, and generating the melody component data on the basis of the time-serial pitch data includes: segmenting the detected time-serial pitch data into data sections, corresponding to individual phonemes constituting lyrics, on the basis of the train of lyrics data contained in the learning score data; and, at each of the sections, removing, from the detected time-serial pitch data, a pitch data variation component between adjacent notes and inserting, in place of the removed pitch data variation component, time-varying pitch data obtained by interpolating between the pitches corresponding to the adjacent notes.