Why does la Martha Real have no lyrics since 1978

1. Why does la Martha Real have no lyrics since 1978? Discuss the political and historical reasons behind this national choice.
2. How did people react to the attempt to write new lyrics for the national anthem in 2007? What were the arguments of those who were criticizing the lyrics?
3. What are the current political conditions in Spain which lead to significant political reactions regarding a pop star's new version of the Spanish national anthem in 2018?
4. Which theories or concepts can help us better to understand the discussions about the national anthem of Spain? Why?

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