An excellent site for information about Mazatlan which is kept current, weekly. I just finished watching a tape of the much heralded music concert in Mazatlan earlier this spring. They taped the finale in which all the musicians were on stage. You may want to go there to see your favorite Mazatlan musicians participating.
Just cut and paste the Mazatlan My City website below:
This site also provides other important information--for example how to make a phone call from the US and Canada to Mazatlan, and from Mazatlan to the US and Canada. Something most tourists get involved in.