The drum fills last for 2 beats, or half a bar of 4/4. They are all made up of combinations of 16th notes and 8th notes, and 1/4 note flams. There are 12 drum fills.
The drum fills could be used in the final bar of a section. For example, play 7 and a half bars of drum beats, and then insert one of these drum fills – and then repeat. To finish off the exercises after repeating, you could play a crash and bass together.
The fills could also be used to start off a song or before playing through some drum beats.
Mix and match the fills to create 1 bar fills lasting 4 beats.