Automatic composer for composing a melody in real time

An automatic composer comprising:

• music progression providing means for providing a music progression;
• melody pattern rule base means for storing rules of melody patterns each representing a melody note succession by a note-type succession and a motion succession;
• note succession candidate generating means for generating a note succession candidate for a melody to be composed;
• melody pattern forming means for recognizing a pattern of said note succession candidate based on said music progression to thereby form a test melody pattern represented in a note type succession and a motion succession;
• rule base search means for searching through said melody pattern rule base means for said test melody pattern;
• repeating means for repeating operation of said note succession candidate generating means, said melody pattern forming means and said rule base search means while changing said note succession candidate each time till success of said rule base search means in finding a melody pattern rule matching said test melody pattern;
• and
• determining means responsive to said success of said rule base search means for determining a note succession of the melody by that note succession candidate involved in said success of said rule base search means.

An automatic composer for automatically composing a melody, comprising:

• rhythm pattern database means for storing a database of rhythm patterns;
• attribute setting means for setting a desired attribute of a note durational succession of a melody to be composed;
• and
• melody rhythm composing means for retrieving, from said rhythm pattern database means, a rhythm pattern having said desired attribute to thereby compose said note durational succession.

An automatic composer for automatically composing a melody and a chord progression, comprising:

• chord progression database means for storing a database of chord progressions;
• attribute setting means for setting a desired attribute of a chord progression to be composed;
• and
• chord progression composing means for retrieving, from said chord progression database means, a chord progression having said desired attribute to thereby compose a chord progression.

An automatic composer comprising:

• musical material database means for storing a database of musical materials for music composition;
• condition setting means for setting conditions of music composition;
• retrieval means for retrieving a musical material from said musical material database means;
• testing means for testing said retrieved musical material with respect to said set conditions of music composition;
• repeating means for repeating operation of said retrieval means and said testing means while changing a music material to be retrieved until said testing means finds a music material complying with said set condition of music composition;
• and
• composing means for composing said found music material as part of said music composition.