That music with obscene lyrics should be censored

Firstly, what do we mean by "obscene?" Words that qualify as obscenities change between time periods; it was only a century ago that words in regular use today (damn, hell) and words considered merely silly (humbug, etc) were considered incredibly obscene, rude, and profane. If my opponent wants to regulate the use of the word "humbug," they will have to prove it is obscene. If they want to skip on that word but include others, then we need to know the standard by which we determine a word is considered "obscene enough" to censor. The resolution, if enacted, is both suppressing of freedom and impractical (if not impossible) to enforce without an official list of banned words, which could change on so regular a basis and be challenged so often that it would quickly become inconsequential and useless in any case.

As stated previously, the Burden of Proof lies on my opponent, and I hope to see their argument in favor of censorship, and what their mechanism for determining which lyrics qualify as obscene would look like.