Open a project in Cubase. Click the "Project" menu at the top of the screen.
Scroll over "Add a Track" and select to add a virtual instrument track. In the pop-up box, select the "Groove Agent 1."
Click the keyboard icon under the name of the track in the main window to open the user interface. Load desired sounds by clicking the square icon at the top of the interface.
Close the interface and hold "Alt" on the keyboard. While holding the key, click where the track will start and drag along the track until the end to create MIDI events at desired points. Double-click the newly created event to program drumbeats using selected sounds.
Click on a key and beat to create a note, and drag while holding the mouse button to determine length. Tribal beats are very rhythmic and feature complex rhythms. Start by marking each beat with a lower-pitched drum. You can then edit the drum sounds from the virtual instrument interface.