Sega have put out new (but low-res) screenshots of Hatsune Miku Project Diva f, covering two of the songs in the game that have already been revealed—Melancholic and Secret Police—along with their associated modules. Take a look at them below:
Melancholic (artist: Junky):
The module associated with Melancholic is the “Melancholy” module, designed by Chiho:
Secret Police (artist: Buriru):
While the Secret Police screenshots above don’t show it, the module associated with this song is “Dark Angel”. Here’s art and a couple of screens of that. You can also watch Miku perform Secret Police and Melancholic in their associated modules in this post.