Music – Instruments – Electrical musical tone generation
Reexamination Certificate
2011-08-30
2011-08-30
Enad, Elvin G (Department: 2832)
Music
Instruments
Electrical musical tone generation
C084S609000, C084S615000, C084S618000, C084S637000
Reexamination Certificate
active
08008568
ABSTRACT:
The present invention relates to an information processing device, an information processing method, and a recording medium for analyzing chord progressions more accurately. A featuring quantity extraction unit41extracts respectively a probability of given chords appearing simultaneously, a probability of transition from a given chord to another chord, if the given chord appeared, and a probability of transition of a given chord originating from another chord, if the given chord appeared, from chord progressions of musical compositions by analyzing waveforms of said musical compositions. A chord similarity calculation unit42calculates the similarities between the chord progressions of musical compositions and the user-input chord progressions based on those extracted these possibilities. A musical composition retrieving unit43retrieves musical composition chord progressions similar to the user-input chord progression based on the calculated similarities. The present invention is applicable to the information processing apparatus.
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Supplementary European Search Report mailed Jun. 22, 2011, from European Patent Office in counterpart European Application No. EP 07 70 6366 (6 pages).
Enad Elvin G
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Sony Corporation
Uhlir Christopher
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