Apparatus for automatically composing music piece
AssigneeNippon Gakki Seizo Kabushiki Kaisha
InventorEiichiro Aoki
Life of this patent
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Abstract
An apparatus for automatically composing a music piece is provided by comprising a memory preliminarily storing plural kinds of pitch data. From this memory, at-random extraction is made of those pitch data agreeing with predetermined music conditions, and they are timewisely successively delivered out to be imparted durations, respectively, to form a composition data consisting of plural sets of pitch data and duration data amounting two to four measures to make a music piece. This composition data may be used for generation of music sounds, and/or display of music score image on a screen of a CRT device, and/or printing-out of a score by a printer, to be utilized in the sound-dictation training and/or performance exercise in providing, for example, musical education.
Claims17
An apparatus for automatically composing a music piece, comprising:
- pitch data memory means storing plural kinds of pitch data representing respective musical note pitches;
- extracting means connected to said pitch data memory means for extracting, one after another, pitch data by randomly accessing the stored pitch data;
- condition providing means for providing predetermined plural kinds of musical conditions;
- judging means supplied with said extracted pitch data and connected to said condition providing means for judging whether each said extracted pitch data satisfies said musical conditions;
- deliver-out means connected to said judging means for delivering out, from among said extracted pitch data, only those that satisfy said musical conditions successively in timed sequence;
- and
- duration imparting means connected to said deliver-out means for combining each said delivered pitch data with a duration data representing a musical time length to form successively, in timed sequence, composition data as combined pairs of a pitch data and a duration data, thus a timewise alignment of said composition data constituting a music piece.
An apparatus for automatically composing a music piece, comprising:
- pitch data memory means storing plural kinds of pitch data representing respective musical note pitches;
- extracting means connected to said pitch data memory means for successively extracting the stored pitch data;
- condition providing means for providing predetermined plural kinds of musical conditions;
- judging means supplied with said extracted pitch data and connected to said condition providing means for judging whether each said extracted pitch data satisfies said musical conditions;
- selected data memory means connected to said judging means for storing all of the pitch data which have satisfied said musical conditions;
- deliver-out means connected to said selected data memory means for randomly selecting and delivering out one pitch data from among said all of the pitch data stored,
- whereby the above-mentioned functions of the whole means are repeated to deliver out a plurality of said pitch data in a timewisely aligned fashion.
A method of automatically composing a music piece, comprising:
- a first step of extracting note pitches, one after another, from among note pitches in a musical scale at random selection;
- a second step of predetermining musical conditions to be utilized as criteria for selecting note pitches;
- a third step of judging, whether each of the extracted note pitches satisfies the predetermined musical conditions;
- a fourth step of selecting, from among the extracted note pitches, only those note pitches that have satisfied the musical conditions;
- a fifth step of combining each of the selected note pitches with a note duration to make respective pitch/duration pairs;
- and
- a sixth step of aligning said pitch/duration pairs timewisely.
Dependencies are inferred from the claim text.