“Teclas Comunes”. Although to me, and in a very personal opinion, “comunes” sound more like “shared”, “belonging to a community”. To me, I think this should be Popular Keys, perhaps? If you were to accept my premise, then the translation of Popular Keys would be “Teclas Más Usadas”, which literally translates to “Most Used Keys”, or popular, right?
If you ignore my premise, then stick to “Teclas Comunes” and I’ll just suck it.