Mlitsonata stands for "Moonlight Sonata" - so the two primary characters would be the older gray fox Ludwig von Beethoven (who happens to be deaf) and the young 18 year old twink Frédéric Chopin. Additional characters would include a man servant named Johan and Beethoven's nephew and protege Karl von Beethoven - both of whom are in their early 20s. The setting is Vienna, Austria in 1827.
Basically they all fuck around with each other - Ludwig and Karl are not biologically related so it's okay, otherwise yuck and still a bit creepy but oh well. LOTS of sneakin' around going on! All of the fun time is set to the most romantic and energetic pieces by Beethoven and Chopin.
(Yes, someone will probably mention that Chopin never lived in Vienna, I don't care. It's a porn. Johann never existed either.)
Ludwig von Beethoven
Karl von Beethoven
Johan (actually Beaudelaire, but looks like he could be a sexy servant)