B or C system is invented first

[bandoneon.hk]

Just curious which one is invented first, B or C system?

 

[brna]

ChatGPT says:

C-System Accordion​

• First Developed: Late 19th century, France.
• Early Producers:
  • Busson and Marcel Dreux were among the earliest French accordion builders who helped develop and popularize the chromatic button accordion.
  • Thibouville-Lamy, a large French instrument manufacturer, also produced early chromatic accordions.
• Spread and Adoption:
  • Gained ground in France, Belgium, and Switzerland.
  • Adopted in Italy, particularly in the north, and later in South America via Italian immigration.
• Instrument Style:
  • Initially, these were often smaller accordions with unisonoric operation (same note on push and pull), unlike earlier diatonic models.

---

B-System Accordion​

• First Developed: Early 20th century, Russia and Eastern Europe.
• Key Figures & Builders:
  • While not attributed to a single company, the B-system evolved from Russian adaptations of the chromatic button accordion.
  • Yevgeny Petrovich Dushkin (Евгений Петрович Душкин), a notable Russian accordionist and educator, helped formalize the system in musical education.
  • Tula and Leningrad accordion factories in the USSR began mass-producing bayans, which used the B-system layout.
• Spread and Adoption:
  • Became dominant in the Soviet Union.
  • Also widely adopted in Balkans, Baltics, and Scandinavia.
• Instrument Style:
  • Most B-system accordions in Russia were bayans, a distinct type of chromatic button accordion with different internal construction (e.g., reed configuration, tone color).