Gotta workshop it a bit

Now I've heard there was a sigma chord
The Rizzler played, and it edged the lord
But you don't really care for music, do ya?
It goes like this, "he cooked," "she ate,"
The skibidi, the Grimace Shake
The baffled king composing Hawk Tuah

I'M ONTO ABSOLUTELY NOTHING

Okay the third line didn't suffer any changes so I think it could be "mew-sic"