Rhythm is an extremely powerful organizing force in music, oftentimes moreso than the pitches…
Here are two (of arguably an infinite number of) possibilities for your consideration…
It is crucial to think about and especially to feel these rhythm patterns within the context of the overall form, not just “beat by beat” or “measure by measure”. Remember: This is an 8-bar form with two 4-bar phrases, which can further be divided into two 2-bar sub-phrases. The idea is to commit to a rhythmic conception that spans an entire phrase, allowing your intuition, ears, and knowledge of scales and chords to fill in the details…
Rhythmic Motive Idea
Here’s a simple rhythmic motive “composed” by Frank…

Listen to Frank clap the meter as he scats the rhythm pattern…
A Possible Rendition
Here a possible rendition of the rhythm above using mostly chord tones. It is appropriate to think of this as simply “painting” the rhythm with chord tones…
