@AccordionBruce @catsalad I've got a theory here: accordions, like opsin genes, were invented at least twice, separately. When the golden age of piracy was gone, the memories of accordions were repressed since strongly associated with socially unaccepted piracy-related aggression and violence. Hence, no trace in later history. However, they re-appear in movies as a great example of an archetype in Jungian shared unconsciousness. Anyone recall other social groups playing accordions? I'd like to develop my theory further.