The Troubadours' Jamboree

There is no greater show in the kingdom of elves, dwarves, or men than that of the Troubadour's Jomboree.

— Jasper Cameron, Leader of the Bronze Ravens

It started out simply enough. Lone Gull would stop by Hell's Half-Acre every summer to check up on Frejya Stormsong. Music would be played, and new songs would be written as Lone Gull told the other denizens of the Half-Acre of the goings on in the world. Of course, the playing of Frejya and Lone Gull alone would be enough to spread tales of the event. Soon enough other bards would seek out the Half-Acre in the summer months to meet and exchange songs with these legends.
It eventually got to be such a brouhaha that Til had to step in and put his foot down, or rather Lux did for him. Sort of, you know how bards and their type get with negotiations. Every year around the Summer Solstice bards in a region gather and hold a large competition/party. They sing of new deeds set to old tunes, old stories set to new tunes, recite poems and put on plays, and in general have a good time. Wherever this is held the local's tend not to complain too much as such a gathering of performers brings in visitors, who in turn bring in money and goods.
This general get-together has taken on the name The Troubadours's Jamboree, and lasts about 2 weeks in which a good time is had by all. There is a secret though, known only to some few bards. At each of these gatherings is a representative of Hell's Half-Acre. It could be Frejya, Lux, a dryad, even Archie has been spotted a time or 2. Impress them, and you can get an invitation in the form of a single magical acorn.
Once a decade, the dryads of Hell's Half-Acre will collect the bards bearing Acorns and bring them to the Half-Acre for a month long party. Magics are traded and taught, songs are recorded, and performances are put on that those in passing caravans speak of with awe for the rest of their lives. Of course, every 100 years every bard that can travel decends on the Half-Acre for said gathering, because Lux thought it was a great way to mess with Til. Can you imagine, thousands of bards, skalds, and troubadours packed into a tiny bit of forest with only a single bar to drink at.
Not the the Half-Acre has ever run out of room...