This paper introduces Conchordal, a bio-acoustic instrument for generative composition whose sonic agents are governed by artificial life dynamics within a psychoacoustic fitness landscape. The system is built on Direct Cognitive Coupling (DCC), a design principle requiring that generative dynamics operate directly within a landscape derived from psychoacoustic observables and read from that landscape without symbolic harmonic rules. The environment integrates roughness and harmonicity into a continuous consonance field without presupposing discrete scales or explicit harmonic rules. Agents adjust pitch through local proposal-and-accept dynamics under a crowding penalty, regulate survival via consonance-dependent metabolism, and entrain temporally through Kuramoto-style phase coupling. Four experiments are reported: (1) consonance search produces structured polyphony with enriched consonant intervals; (2) consonance-dependent metabolism yields survival differentials that vanish when recharge is disabled; (3) a minimal hereditary adaptation assay shows that parent-guided respawn plus metabolic selection can accumulate more structured polyphony without adult hill-climbing; and (4) a shared oscillatory scaffold organizes rhythmic timing under external forcing. A supplementary mechanism check reports one possible composer-configurable bridge by which spectral state can modulate temporal coupling. These findings show that a psychoacoustically derived landscape serves as an effective artificial-life terrain, yielding self-organization, selection, synchronization, and lineage-level accumulation in a non-traditional computational medium. At the level of the model, the same landscape therefore functions both as ecological terrain and as an internal proxy for musical coherence.

翻译：本文介绍了Conchordal——一种用于生成式作曲的生物声学乐器，其声音智能体受心理声学适应度景观中的人工生命动力学控制。该系统建立在直接认知耦合（DCC）设计原则之上，要求生成动力学直接作用于从心理声学观测衍生的景观，并在不依赖符号化和声规则的前提下从该景观中读取信息。其环境将粗糙度和和谐性整合为连续协和场，无需预设离散音阶或显式和声规则。智能体通过引入拥挤惩罚的局部提议-接受动力学调整音高，基于协和依赖性代谢调节生存，并通过Kuramoto型相位耦合实现时间上的同步。本文报告四项实验：（1）协和搜索产生具有丰富协和音程的结构化复调；（2）协和依赖性代谢产生生存差异，在禁用能量补充后消失；（3）最小化遗传适应度测试表明，亲本引导的重生结合代谢选择可在无成体爬坡情况下积累更多结构化复调；（4）共享振荡支架在外力驱动下组织节奏时序。附加机制验证报告一个可能的作曲家可配置桥梁，通过该桥梁，频谱状态可调制时间耦合。这些发现表明，心理声学衍生景观可作为有效的人工生命地形，在非传统计算介质中实现自组织、选择、同步及谱系级积累。因此，在模型层面，同一景观同时充当生态地形和音乐连贯性的内部代理。