Musical piece analysis device, program, and musical piece analysis method
AssigneeAlphatheta Corporation
InventorsShiro Suzuki, Toshihisa Sabi
Life of this patent
Estimating the term…
Abstract
A music piece analyzer includes: a key candidate determiner configured to analyze music data to determine a plurality of key candidates; and a key selector configured to extract each one of the plurality of key candidates, detect keys corresponding to related keys from among remaining ones of the plurality of key candidates supposing that the extracted one of the plurality of key candidates is a main key, on each extracted one of the plurality of key candidates, calculate a related key score in accordance with the number of the keys corresponding to the related keys, and select a key of a music piece in accordance with the related key score from among the plurality of key candidates.
Claims8
A music piece analyzer comprising:
- a key candidate determiner configured to analyze music data to determine key candidates;
- and
- a key selector configured to:
- extract each one of the key candidates as an extracted key candidate;
- for each of the key candidates as the extracted key candidate, detect, from among the key candidates other than the extracted key candidate, those key candidates that are related keys supposing that the extracted key candidate is a main key, and calculate a related key score in accordance with a number of key candidates that are detected as related keys;
- and
- select a key of the music piece from among the key candidates in accordance with the related key score calculated for each of the key candidates.
A music piece analysis method comprising:
- analyzing music data to determine key candidates;
- extracting each one of the key candidates as an extracted key candidate;
- for each of the key candidates as the extracted key candidate, detecting a related key from among the key candidates other than the extracted key candidate, those key candidates that are related keys supposing that the extracted key candidate is a main key, and calculating a related key score in accordance with a number of the key candidates that are detected as related key;
- and
- selecting a key of the music piece from among the key candidates in accordance with the related key score calculated for each of the key candidates.
Dependencies are inferred from the claim text.