Third paragraph:

This is quite detailed. I need to ensure each word is replaced with three alternatives. Some words might have only one real synonym, so the other two could be the same as the original or similar. For example, "una" might just be una since articles don't have synonyms. But the user might expect alternatives, even if they are the same.

In the conclusion part, "conclusión" becomes cierre.

Also, numbers like "20" could be 020, and "canciones" → canciones, even if the alternatives are not perfect.