ah that sucks... and isn't really what music is supposed to be about, imo
it's not like some math formula or physics concept or something, it's just music... a creative art... it's not supposed to be analyzed like you would with other scientific, logic-based stuff. I mean sure, if you were to write a piece of music, you have to know about chord structures and stuff like that... but otherwise... it's supposed to be free, if you know what I mean.
'cut me some slack' is like a slangish phrase to mean like 'give me a break', 'don't expect too much', etc