Learn Dutch: Analoog vinyl heeft krassen, maar dat maakt de muziek des te leuker. - Analog vinyl has scratches, but that makes the music all the more fun.

You have likely seen des te paired with hoe to mean the more... the more... (like Hoe ouder, des te beter). However, des te can also be used independently to mean all the more or so much the. It emphasizes that a condition mentioned earlier in the sentence (having scratches) amplifies the adjective that follows it. It must always be followed by a comparative adjective, which is why we see leuker.

Why is there no -e ending on Analoog? Shouldn't it be Analoge vinyl?

Vinyl is a neuter noun (het vinyl). Because it is used here without a definite article like het, dit, or dat (it is functioning as an indefinite, uncountable material), the adjective preceding it drops the -e ending. That leaves us with the uninflected Analoog vinyl.

What exactly is the pronoun dat pointing to in the second clause?

Dat refers back to the entire situation described in the first half of the sentence (the fact that analog vinyl has scratches). In Dutch, when you want to refer back to a complete thought, action, or general situation rather than one specific noun, you always use the neuter pronouns dat or het.

Could I translate all the more fun literally and say des te meer leuk?