在一个大型的跨文化音乐音标数据库中的融合进化
John M McBride1, Sam Passmore2,3, Tsvi Tlusty1,4
1Center for Soft and Living Matter, Institute for Basic Science, Ulsan, South Korea.
PloS one
|December 13, 2023
概括
音乐音标表现出明显的跨文化相似性,其间隔有限,音符结构普遍. 这项研究分析了音乐音标数据库 (DaMuSc) 以探索音标演变和收模式.
科学领域:
- 音乐学 音乐学 音乐学
- 民族音乐学 民族音乐学
- 进化生物学 进化生物学
背景情况:
- 音标是旋律的基础,被认为是音乐的普遍方面.
- 关于音乐音标的跨文化多样性和演化途径的理解有限.
研究的目的:
- 编制一个全面的音乐音标跨文化数据库 (DaMuSc).
- 分析不同文化的音乐音标的多样性和演变.
- 调查音乐尺度结构中融合进化的根本原因.
主要方法:
- 组建了一个跨文化数据库 (DaMuSc) 的音乐尺度数据收集了一个多世纪.
- 对尺度数据进行统计分析,以确定间隔使用模式和尺度结构.
- 在各种社会中检查了规模建筑的相似性和多样性.
主要成果:
- 在不同文化中发现频繁使用特定的间隔 (八度,五度,秒).
- 尽管存在一些差异,但在全球范围内观察到规模的显著相似性.
- 发现步骤间隔限制在100-400厘米,并且普遍存在5和7音符的等距尺度.
结论:
- 跨文化相似之处在音乐尺度中比多样性更为突出.
- 这些发现表明,变异和选择的潜在机制驱动着规模进化.
- 达穆斯基数据库为研究音乐系统的融合进化提供了基础.
相关概念视频
Convergent Evolution
27.8K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
27.8K
Evolutionary Relationships through Genome Comparisons
5.7K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
5.7K
Synteny and Evolution
3.3K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.3K
Problem-Solving: Tuning of a Guitar String
436
In the case of stringed instruments like the guitar, the elastic property that determines the speed of the sound produced is its linear mass density or the mass per unit length. This is simply called the linear density. If the string's linear density is constant along the string, then the linear density is simply the total mass divided by the total length.
The string's wave speed can be regulated by varying the linear density. Tension is the other property that determines the speed of...
The string's wave speed can be regulated by varying the linear density. Tension is the other property that determines the speed of...
436
Multi-species Conserved Sequences
3.9K
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
3.9K
Gene Duplication and Divergence
6.1K
The seminal work of Ohno in 1970 popularized the idea of gene duplication and divergence. DNA sequence comparison studies reveal that a large portion of the genes in bacteria, archaebacteria, and eukaryotes was generated by gene duplication and divergence, indicating its critical role in evolution.
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
6.1K


