Conversation so far:
is the modern music of mexico based on indigenous amerindian cultures and the music of spain
The modern music of mexico  is based on indigenous amerindian cultures and the music of spain.
what is a traditional Mexican song?
Júrame (Swear to me) is a traditional song from Mexico.
Who sang Júrame?
María Grever sings Jurame.
what is another famous traditional Mexican song besides Júrame?
La Bamba is another famous traditional Mexican song.

Question: when was the song released?
Self-contained rewrite: when was the song La Bamba released?