Accompaniment line principal tone determination system
First Claim
1. A system for determining a principal tone for each of a plurality of segments of an accompaniment line, in an environment wherein data of music are provided before said principal tone is determined, comprising:
- hierarchic structure means for defining, as at least part of said data of music, a hierarchic structure of segments of music; and
principal tone inference means for generating an output signal based on inferring a principal tone for a segment of interest among said segments of music, in accordance with said hierarchic structure defined by said hierarchic structure means, whereby a principal tone is determined by said principal tone inference means for each of said plurality of segments of the accompaniment line.
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Abstract
A system for automatically determining principal tones of an accompaniment line supporting a melodic line comprises a plurality of principal tone inference engines which after principal tones in accordance with different rules of inference from one another and a priority control which controls priorities among the plurality of inference engines to determine final principal tones in the accompaniment line. Each principal tone inference engine may include a condition checker which checks to see whether musical conditions are met and a principal tone generator which generates principal tones. The priority control monitors the information supplied from the condition checkers to select final principal tones supplied from the principal tone generators. Some of the final principal tones may be dependent from the preceding principal tone while some others may be independent. There may be also be provided a storage of the structure of music which is reflected in a series of the final principal tones. In an application, a melodic line monitor is provided so that an accompaniment line interacting with the melody will be generated.
10 Citations
5 Claims
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1. A system for determining a principal tone for each of a plurality of segments of an accompaniment line, in an environment wherein data of music are provided before said principal tone is determined, comprising:
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hierarchic structure means for defining, as at least part of said data of music, a hierarchic structure of segments of music; and principal tone inference means for generating an output signal based on inferring a principal tone for a segment of interest among said segments of music, in accordance with said hierarchic structure defined by said hierarchic structure means, whereby a principal tone is determined by said principal tone inference means for each of said plurality of segments of the accompaniment line. - View Dependent Claims (2, 3, 4, 5)
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Specification