先翻译: 如果在零度、八度、四度、五度音程中的高音和低音的比是自然音阶，效果是最好的。解释是：自然音阶中零度、八度、四度、五度音程的基音频率比分别是1：1，2：1，3：2，4：3。符合最小整数比原则。至于为什么最小整数比效果最好，请参考下述原理和一个简单模型。人的耳膜是一个共振器，...
We discuss and enumerate pc-sets that are both not contained in any diatonic collection and are minimal with respect to this property, and we generalize this idea to other collections. We also consider related simplicial complexes and examine how some of their geometric properties reflect qualities...