I'd like to provide context first:
I'm currently pursuing a thesis project that uses a stylistic approach to rap music. I want to be able to prove that dividing rap bars by the (usually) four beats in a meter and then comparing a segment of words in between two beats (let's call them beat units) to another beat unit from the same/different bar uncovers deeper meaning via parallelism or contrast.
The thing is, with today's rap being by no means monotonous (or rather, mono-speed), I personally have a difficulty distinguishing just where the beat lands on a certain bar. I'd like to elicit suggestions that might facilitate this manual process. Is there any software, or even strategy, that could make it easier for me to determine where the beat lands on a certain lyrical meter?
EDIT: Title grammar