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I'm really sorry to ask cause I am positive you have gave an amazing explanation, I just lack the grammar knowledge of my own language for it to translate.

causative-consecutive / tensed...

Thanks for your reply, could you give me a little more into the middle part though as it is completely confusing me.

I understand До as before and it causes the following to take the Genitive,...

Okay my attempt was;

Знаешь ли эту песню перед этим было знаменитым?

My chain of thought;

[Знаешь ли] Presently tense, 2nd person, do you know?

[эту песно] using declined этот as I am...