Open a music production program and import a midi or audio song. Create up to five new audio or midi tracks based on what song format you're using.
Find bass samples or bass sequence in the song and set the volume above all other instruments, between 75 and 85. Double the bass by copying and pasting to the track below it.
Edit copied bass track by adding slight reverb and delay effect. Bring up a program mixer and set the track volume between 30 and 45.
Select the drum part of the song and copy and paste it to an empty track below. Use the "Pan" feature on mixer for the original drum track and pan to the right 50 percent with a volume of 65 to 70. Select copied drum track and pan 50 percent to the left with the same volume as the original drum track.
Select additional instruments and mix at a volume of 55 or lower. Use pan, echo, reverb and compression effects to distinguish different instruments.
Press play to preview the song and finish mixing it in real time. Save the song to your computer hard drive once you're finished listening.