用音乐模型破解百年密码，重构出可听旋律。
Dorabella Cipher as Musical Inspiration
- 以音乐三元语法模型分析密码，尝试还原加密旋律。
- 重建旋律具音乐性，经艺术加工后可演奏。
- 强调解密即创作，适合音乐与密码交叉研究者。
多拉贝拉密码是英国作曲家爱德华·埃尔加撰写的一封加密信件，百余年来未被成功破译。尽管多数假说认为其内容为英文文本，本文探讨该密码可能代表加密音乐的假设。通过权衡正反证据，设计简化音乐记谱法，并尝试从密码中重构旋律。方法基于音乐n-gram模型，在使用单字母替换加密的现有乐谱数据集上进行验证。将该方法应用于多拉贝拉密码，得到具有音乐特征的解密结果，并通过艺术化编排转化为可听旋律。本文不主张该结果为唯一正确解，而是将解密过程视为创作的一部分。
原文摘要 · Abstract (English)
The Dorabella cipher is an encrypted note written by English composer Edward Elgar, which has defied decipherment attempts for more than a century. While most proposed solutions are English texts, we investigate the hypothesis that Dorabella represents enciphered music. We weigh the evidence for and against the hypothesis, devise a simplified music notation, and attempt to reconstruct a melody from the cipher. Our tools are n-gram models of music which we validate on existing music corpora enciphered using monoalphabetic substitution. By applying our methods to Dorabella, we produce a decipherment with musical qualities, which is then transformed via artful composition into a listenable melody. Far from arguing that the end result represents the only true solution, we instead frame the process of decipherment as part of the composition process.
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