Episode 1 of 2
Patent Presentation
- When
- May 6, 1829
- Where
- Vienna
Cyrill Demian and his sons presented the accordion to Vienna authorities on May 6, 1829, for patent approval.
The application described a portable instrument with metal reeds and bellows, designed for travelers. It was intended for accompanying singers, playable with both hands simultaneously, unlike earlier harmonicas.
Sources
- Cyrill Demian Wikipedia, revision of 2026-03-30
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.