This "Rhythmic Melodies" exercise is from The Foundational Series Book. What you are hearing is a 4 measure long rhythmic phrase on the bass drum, with 16th notes being accented every 5 notes with the RLRL sticking.
What You Get:
Two MP3 Play-Alongs (one with click, one without)
The Foundational Series Book has 6 Rhythmic Melodies Sections, each with eight 4-measure phrases. You can check out more on the Foundational Series Book HERE.