To search the tracks in CDpedia, click on the little magnifying glass in the search window and choose 'Search Tracks'.
The tab and comma delimited export formats don't include the tracks because they are based on the columns in the table view and the tracks can't be displayed there. But you can export the tracks in the HTML or text templates. Some of the HTML templates already have the tracks included but are the templates all customizable so if you like another template better or would like to write your own from scratch, you can include the tracks there too.
For more information about editing templates, take a look at the Help file under Exporting > Customizing templates.