^nope, U dont exactly ave to rhyme on snare and bar is like how much you can hold in your breath id you can write

I'de beat your ass down with a clock to give u the time of your life// without gasping, or losing too much breath than thats a bar. And for audio you dont exactly have to rhyme to the snare but make sure u have about the same number of sylables like this:

everyone knows that my content's sicc//(9)
I'm black cuz i have a bone to pick//(9)