Best answer by Mathis
We don't offer an official direct download URL. However, there's a workaround. To get a direct download link add the track for which you want a download to your RSS feed, then copy & paste the URL of the feed to a new browser window. You can now look (or search using cmd+F) for a URL that ends with .mp3 - this might work as your direct download link.
How to add a track to your RSS feed is outlined here.