For simple drum parts that involve at most a snare, three toms, and three cymbals, it's easy to map them to colors in 4-lane drums.
- Red: Snare
- Yellow: High rack tom, hihat
- Blue: Low rack tom, ride
- Green: Floor tom, crash
But few drummers outside of pop and jazz keep their kits so limited. So you have to work whatever the drummer may use into the lanes you have. We start with the base mapping above to keep things familiar, and deviate when needed.