By Kate Maltby

(CNN) -- The kids are alright. Or so says Vladimir Putin, defender of Slavic values, crusher of political dissent and (it seems) indulgent fan of Russian rap music.

Speaking on Saturday at a St. Petersburg forum on arts and culture, the Russian President warned against heavy-handed censorship of Russian rap.

On the surface, it's an odd move. Like most authoritarians, Putin likes to present himself as a social traditionalist -- defending Russia's viciously homophobic restrictions on gay life and decriminalizing domestic violence in a nation which still expects women to obey their husbands. Among the international alt-right, Putin is widely seen as a last defender of Christian values.

But rap, he seems prepared to concede, is not a cultural threat. Although noting on Saturday that the state had a role to "navigate and guide" the permitted content of rap lyrics, Putin celebrated the artform as part of a natural cultural evolution, comparing it to the waltz.

"It is well known to everyone that waltzes were not very well received in their time; it was considered mauvais ton [vulgar] to dance a waltz. Then it became classic, in fact," he said. Putin himself danced a waltz at the recent wedding of Austria's Russia-friendly foreign minister -- perhaps he'll try a solo rap offering at the next Trump family wedding.

Does this mean that Putin has suddenly discovered the value of freedom of expression? Don't kid yourself. Russia remains a nation under the heavy yoke of censorship.

Just a fortnight ago, the Putin-controlled judiciary jailed 77-year-old Lev Ponomarev for posting a Facebook status advertising a peaceful protest. Russia is currently ranked 148 out of 180 countries in the world for media freedom by Reporters Without Borders. And Index on Censorship (of which I am a trustee) recently reported on Russia's intensifying prosecution of professional journalists, who are increasingly leaving the country.

What's changed with the rise of rap is that Putin has suddenly found a form of dissent too potent for him to control. Rap is wildly popular -- it's easier to idolize a rapper than a journalist and much more fun. Putin's recent comments follow the arrest of "Husky," aka Dmitry Kuznetsov, a young artist who defied police orders to shut down a recent concert and instead jumped on a car to keep performing to his fans. Most importantly, his fans wouldn't leave his side. Kuznetsov was sentenced to 12 days in jail, but the sentence was quashed after public outcry.

It's rare for a political dissident or a campaigning journalist to gather enough public support to bust a jail sentence. The popularity of rappers like Kuznetsov is what protects them.

Intriguingly, Kuznetsov was once a journalist himself, but reportedly worked for a state media organization that required total loyalty to the ruling party orthodoxy. In his rap output, he's much more critical of contemporary Russian life, but still skirts just away from outright criticism of Putin. He sings about poverty, but not explicitly about the causes of that poverty.

One Husky track tells the tale of a king indulging in a banquet while his people starve. The title of the song? October 7. Perhaps it is just coincidence that the date is the birthday of Putin. Then again, art has a capacity for insinuation that allows it greater political dexterity than journalism.

Throughout the history of authoritarianism, and particularly in the Russian sphere of influence, music -- popular and classical -- has always snuck below the censor's radar to be a rallying cry for dissent. Tom Stoppard's play "Rock and Roll" celebrates the role of rock band Plastic People of the Universe in inspiring Czech protest against Soviet occupation.

Famously, both Dmitri Shostakovich's Fifth and Seventh symphonies were approved by Soviet authorities as patriotic works of state loyalty, but have been widely celebrated for their subtext of mournful resistance. If you play in a minor key, the censor can't prove you're complaining about him.

What Putin seems to have realized recently is that rappers are a far more dangerous enemy than old-school political activists. The aging Ponomarev has 9,553 followers on his troublesome Facebook page, while Kuznetsov, 25, got 2.8 million views on YouTube for a recent track.

And although Russia currently looks aggressive on the world stage, Russia experts have been noting recently that Putin is weaker at home than he has been for a long time. Low energy prices continues to squeeze the economy, and recent plans to raise the retirement age backfired.

So, if you can't beat 'em, join 'em. Putin seems to have decided to let Russia's rappers have a little leeway, in the hope they'll lose interest in him as an opponent. Whether this repressive tolerance will work is yet to be seen.

But from a purely cynical view, Putin has good reason to point to the waltz as a model. As radical as it might once have been, by the mid-nineteenth century its regulated, formal versions had been integrated into the most repressive royal courts in Europe. There's nothing as impotent as state-sanctioned fun.