After the seizure of power in the Soviet Union, there was a lot of necessity but there was also a great flourishing of creativity, literally like an uncorking. And a lot of artists were both taking responsibility to be part of meeting that necessity, including bringing the masses into political and cultural life, and there was a great deal of experimentation in that regard. In October 1918, Lunacharsky (who was the commissar for public education) said, "let us make the squares our palettes, the streets our brushes!" This book explains, "The cities were turned into huge open air exhibitions with hundreds of large decorative panels and monuments. Street shows and plays—some with thousands of performers, and tens of thousands of spectators—light effects, music and songs, created an entirely new synthesis of art forms." The pictures in this book show great festivities, huge red banners hanging all over the streets, big murals, sculptures and tens of thousands of people filling the streets. It's breathtaking. They also wanted to unleash the artists to put themselves to architecture, and every other part of life, Lenin had a vision of the walls being covered in frescoes.
[I found a really interesting and significant quote from Lenin in this book that I hadn't heard before: "In relation to all forms of popular education, Lenin emphasized that 'it would be the greatest and most terrible mistake which a Marxist could make to think that the millions of craftsmen and peasants could emerge from the darkness along the straight line of pure Marxist education.' These simple people, he said, 'must be approached in such a way that their interest is awakened—they must be roused from all directions and by all manner of means.'" (the book says "simple people," and the citation for this was in Russian so I don't know where it's from). I thought this was very interesting in terms of the dynamism and vibrancy Lenin was fighting for, and learning from that, you can see the role for the enrichment in terms of taking up all spheres.]
There was a lot of discussion about this art serving the people, and from what I can tell this was a lot of the impetus of different artists themselves and there was a great deal of experimentation with abstract art. A lot of it was geared to the building of the new society (and Rodchenko talks about art of construction). But there was also a great deal of experimentation here and a lot of use and playing with abstraction. Rodchenko, for example, wanted to make a new kind of painting that reflected the new world and new people. He wrote in one place, "Down with ART, the means to ESCAPE FROM LIFE which is not worth living. Conscious and organized LIFE, the ability to SEE and CONSTRUCT, that is the modern art." (This is most definitely not the only kind of art that is required, and I think even this doesn't have quite enough space, but there is a lot to learn here including again, in the experimentation and how different artists saw filling the needs of this new society broadly understood.)
Toward the late '20s the festivals became very geared towards celebrations of industry (this was in there before, but it became really constricted around that) and there was in the arts the single focused emphasis on socialist realism. The book I have on Rodchenko describes it this way, "The climate had changed, and at a time when the Soviet Union was struggling with a series of Five Year Plans to modernize industry and agriculture to establish economic viability it was felt that the simple rhetoric of Socialist Realism provided a more easily intelligible framework for communicating the changes that were taking place. Like many of his colleagues Rodchenko was not able to comply with this prevailing aesthetic and as a result he was thrown more and more in upon himself with few outlets for his work."
The lights more or less went out. And yes, there was a profound amount of necessity they were facing—the numbers lost in the war, and what it took to fight that war are staggering. The newness of all this was a big deal. And you do need economic plans, but not everything that goes on in your society has to immediately serve that or it's no good. This was an unprecedented flourishing, and it's not like everything should continue at the same height or intensity (or that it was all fantastic), but the constriction around all this, along with many other contradictions, did lead to "turn out the lights, the party's over."