Open your preferred digital audio workstation, or DAW. It may take a few seconds for it to fully load. Depending on the program you use, either a blank session or the last saved session opens automatically. If the last session opens, click "File" and "Open New." When prompted, select "Close" to shut down the other session.
Click "File" and select "New MIDI Track." A MIDI track is distinct from an audio track because it receives its notes as data rather than sound. The data commands tell the DAW which sounds to assign to which event in the song.
Double-click on the MIDI track name bar and rename it "Drums."
Click "Instruments" and browse for "Drum Kit From Hell." Once you click on it, DFH opens in a new window. All edits and note-assignments made in DFH are routed to the selected audio channel named "Drums."
Double-click the box at the bottom of the DFH interface where it says "120 BMP." This is default tempo. Enter your preferred tempo by typing over "120."
Click on each drum graphic in turn, starting with the kick drum. This calls up a menu where you can select the specific type of kick drum you want. If there is a "C" icon next to an option, this means the drum sample was recorded from a close microphone position for a tighter, punchier sound. Repeat this process for each drum to set the kit how you want it. Alternatively, you can select a kit preset configured for a specific music style, such as "Thrash Kit."
Right-click the "DFH Sampler" button and select piano roll. The piano roll is a grid interface; the vertical axis represents notes laid out as piano keys and the horizontal axis represents time, measured in beats and bars. Each note on the piano key corresponds to a different drum.
Plot the beat by clicking on grid squares. For example, put a kick drum on the first beat of every bar of a four-bar loop by clicking on the kick-drum row on square 1, 5, 9 and 13. This process is intuitive as it lets you hear the beat and see the notes. To turn a note off, click it.
Drag-and-drop finished loops from the piano roll interface to the "Arrange" interface to place the loop into the song.