I'm hibernating in evenings so my soirees are very dream-related.

Recluse? Perhaps, but he does indeed party and the list for his soirées is mega-exclusive.

Soiree, soirée, or swarry. Yes, swarry is, or rather was, a word. It is spelled to match the English pronunciation. Dickens used it in 1837 (in what work there is no record I could find, but he was publishing monthly installments of The Pickwick Papers and Oliver Twist at the time), so it must be okay, except it’s fallen out of usage. That happens to words. I say that, if we have to use fruition, outlier, and, God forgive me for putting it in this comment, nowadays, we should be able to use swarry. It just needs more usage. There’s a challenge for you GA authors.

If you look up soiree in Etymonline.com, the Etymology Online Dictionary, you will find that soiree is related to the Lithuanian word sietwa, “deep place in a river.” Why the Lithuanians have their evening parties at deep places in rivers is anybody’s guess. Maybe, it has to do with clandestine night-time fishing parties so popular in Eastern European locales.

For you Benjamin Britten fans, and don’t try to deny your involvement in Britten events because there are people who pay attention to people like you, I’m sure you remember Soirée musicales, (Musical Evenings), Op. 9, that suite in five movements derived from work by Gioachino Rossini. If you're looking for inspiration from Italian composers, Rossini is probably your best source.