Layout rules control the macro-structures of the patterns in the composition process, so that target patterns will present the specified structures.

布局规则是在构图过程中，对图案的宏观结构进行控制，使目标图案呈现指定的结构形态。

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Such process-based composition languages lack the ability to use business rules managed by different business rules engines in the composition process.

然而，这种基于流程的合成语言缺乏在合成过程中使用由不同的业务规则引擎管理的业务规则的能力。

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Although the process of transferring a musical composition from a gleam in the composer's eye into a handwritten manuscript and, finally, a performance-ready score has come a long way from the days of copper-plate engraving, it's a process rife with the possibility of transmittal error.

WSJ: Ravel| Mother Goose| New York Philharmonic| Arbie Orenstein