27. A computer-readable recording medium storing a music score reading program for reading an image of a music score to recognize music signs therein for conversion into a readable music score data format, the music score reading program comprising: label separating function of separating a head label using information of a stem; scanning function of scanning a stem candidate; recognizing function of matching the separated label around the stem candidate detected by said scanning with a dictionary so as to recognize a drum head; and coupling function of coupling the recognized drum head and the stem candidate.
27. A computer-readable recording medium storing a music score reading program for reading an image of a music score to recognize music signs therein for conversion into a readable music score data format, the music score reading program comprising: label separating function of separating a head label using information of a stem; scanning function of scanning a stem candidate; recognizing function of matching the separated label around the stem candidate detected by said scanning with a dictionary so as to recognize a drum head; and coupling function of coupling the recognized drum head and the stem candidate. 34. The computer-readable recording medium storing a music score reading program according to claim 27 wherein upon recognizing a drum note having a head dividing a stem and a first drum note having a first head, said coupling function couples the head dividing the stem and its upper and lower stem candidates and then said recognizing function recognizes drum notes with oppositely oriented stems sharing said head, and further including downward note deleting function of deleting the drum notes with the downward stem and a stem coupling function of coupling the upper and lower stem candidates, wherein the coupled upper and lower stem candidates are set to be a stem candidate which is then coupled to the first head by said coupling function.