Rosser stomps his way through the brief but potent “Jamola” with an up-tempo shuffle feel that swings as hard as it rocks. He goes through four, four-bar phrases, coloring each with a particular fill. Take a look at the thematic development within the sequence of these fills. The first is a natural maneuver for this type of feel — almost begs to be played. The second starts out like the first, but then introduces a new idea. The third fill is a development of the first, and finally, the fourth fill expands on the new material from the end of the second fill. All are clearly related thematically, adding to the overall composition and cohesion of the song.