How does what you are doing fit with the council's statement that the Church is the entire community of believers - not just the hierarchy.
Is your choir the only music group? If your style the only musical style? Are there opportunities and encouragement for the entire assembly to sing some pieces in every Mass (not ALL -but some).
Out of curiosity: why not? It would seem like an easy step.
A major reason is linguistic diversity in Italy. At least a dozen languages separately evolved from Latin, each with dialects. No 'national' language until 1923, when Mussolini imposed Tuscan.
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