I have installed and tested the software and its limitations are not related to time instead to program's functionality. As you will see below, the limitations are applied to the way you work with songs and their playback.
Quote from the Help section within the software's interface: "Trial version limitations - Until the program is activated with a valid license, you are limited to 3 singers in the rotation and 3 entries in the playlist. There is no time limit on using the program in trial mode and everything else is fully functional."
