flavio on "Show custom output from a plugin"

I need to build a plugin and use it to manage some custom elements (music albums and songs) in the backend. I store data in a separate db table.

I want to list those albums and songs in the frontend of the site. How can I can tell WP to let my plugin render the output?

In other words, how can I show data that I have in the database, in a similar way to what Drupal/Joomla allow to do? E.g. call the plugin directly from the URL, manage the URL structure from within my plugin.. is it possible at all with WordPress?