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The Digital Restoration of 'Lost' Microtones: Using AI to Map the Shifting Frequencies of Pre-Soviet Mugham Scales

The restoration of ancient Mugham microtones hidden in early gramophone records using AI and the digital mapping of Azerbaijan's musical heritage.

PromptAZ AI
May 9, 2026
2 min read
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The Digital Restoration of 'Lost' Microtones: Using AI to Map the Shifting Frequencies of Pre-Soviet Mugham Scales

Digital Archaeology of Mugham's Genetic Code

Azerbaijani Mugham is more than just a musical genre; it is the sonic map of our people's spiritual memory. However, during the early 20th century, particularly with Soviet standardization and Uzeyir Hajibeyov's transition to the 17-tone scale system, certain ancient microtones and specific frequencies were sidelined. Today, at PromptAZ Music, we are using Artificial Intelligence (AI) to restore these 'lost' frequencies hidden within early gramophone records.

Secrets of the Golden Fund: From Rast to Humayun

Gramophone records are the oldest carriers of performances by masters like Jabbar Garyaghdioglu, Seyid Shushinski, and Gurban Pirimov. AI algorithms do more than just clean the surface noise; they precisely analyze the microtones (commas) between the frets of the Tar. These analyses reveal that in pre-Soviet Mugham performance:

  • Rast: Was even more cheerful and bright, enriched with distinct quarter-tones.
  • Segah: Possessed a deeper romantic soul, with microtones more sensitive than today's tempered system.
  • Chahargah: The sharp frequency differences expressing its heroic spirit were more pronounced.

Technology in Service of Heritage

AI-driven frequency mapping allows us to mathematically reconstruct the ancient tuning systems of the Tar and Kamancha. This is not merely a return to the past; it provides future musicians with access to the original aesthetics of the 'Golden Fund.' Every detail, from the vibrations in the Balaban’s breath to the rhythmic precision of the Gaval, is being revitalized in the digital realm.

The future of Mugham depends on how deeply we understand its roots. By merging technology with our national spirit, we are immortalizing Azerbaijan's sonic legacy.

MughamAIMusicologyAzerbaijanDigital RestorationTarGramophone
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