Associating musical score image data and logical musical score data

An apparatus for analyzing a musical score based on musical score image data representing an image of a musical score of a given music piece and logical musical score data logically representing the musical score of the given music piece, said apparatus comprising a processor unit configured to:

• identify, based on the musical score image data of a first type file, an image note sequence that is a time series of a plurality of notes included in the image of the musical score of the given music piece;
• identify, based on the logical musical score data of a second type file different from the first type file, a logical note sequence that is a time series of a plurality of notes included in the musical score of the given music piece;
• and
• generate musical score analysis data defining a correspondence relationship between individual ones of the notes in the image note sequence and individual ones of the notes in the logical note sequence by comparing the image note sequence and the logical note sequence,
• wherein said processor unit is configured to compare the image note sequence and the logical note sequence by comparing a time series of vector data of the image note sequence and a time series of vector data of the logical note sequence.

A non-transitory computer-readable storage medium containing a group of instructions executable by a processor unit for performing a method for analyzing a musical score based on musical score image data representing an image of a musical score of a given music piece and logical musical score data logically representing the musical score of the given music piece, the method comprising:

• identifying, based on the musical score image data of a first type file, an image note sequence that is a time series of a plurality of notes included in the image of the musical score of the given music piece;
• identifying, based on the logical musical score data of a second type file different from the first type file, a logical note sequence that is a time series of a plurality of notes included in the musical score of the given music piece;
• and
• generating musical score analysis data defining a correspondence relationship between individual ones of the notes in the image note sequence and individual ones of the notes in the logical note sequence by comparing the image note sequence and the logical note sequence,
• wherein said comparing the image note sequence and the logical note sequence compares a time series of vector data of the image note sequence and a time series of vector data of the logical note sequence.