The clarinet might not be the first instrument that comes to mind when you think of early music, Jane Austen era dance tunes or folk (or even death metal for that matter -- more on that later 馃槄). But I've had a lot of fun taking it to places it isn't usually heard, so I thought I'd play out a few examples. You can decide for yourself it there's a good reason it isn't usually heard in those musical styles!
-- The Key to the Cellar
This tune is in Playford's Dancing Master, a dance manual with popular tunes to play that was published in England in 1651. It sounded hugely familiar when I first started playing it down the pub, aided and abetted by 
https://soundcloud.com/elfwind/the-key-to-the-cellar
-- Danny Boy
A classic, down-the-pub, cry into your beer tune this, also known as Londonderry Air. (I call it Derry, myself -- after watching Derry Girls on Channel 4, so I'm quite the expert now! 馃檭 ) I've always felt that the clarinet could substitute equally well for fiddle or flute, but that, ahem, rather depends on who's playing it. Paul B accompanies again.
https://soundcloud.com/elfwind/danny-boy
-- Fenice Fu
A medieval dance/popular tune from a book of duets recorded during the winter lockdown of 2021 with my friend and musical collaborator Bob. S on flute (he also plays in Swing 42). I recorded the drum track beforehand, and we played along to it, recording the overall result again. There's a bit of dangerous mucking about with double tracks and effects on the last section; you could probably power a faster-than-light spaceship from energy siphoned away from overused audio and video effects.
https://soundcloud.com/user-635600489/fenice-fu
-- C'est la fin
It's highly anachronistic to play clarinet on these tunes, because the instrument wasn't even invented when the last tune and this next tune were written. All the cool people played lutes and recorders. Or crumhorns, sackbuts, shawms and serpents. This next tune came from a songbook published by the Emily Askew Band. It didn't have a second part written for it, so Bob and I played it as a round.
https://soundcloud.com/user-635600489/cest-la-fin
-- Nature Boy
This is neither early music nor folk, but it is a genre where you don't tend to hear the clarinet played very often. Someone pointed out on social media that an anagram of Delta and Omicron is Clarinet Doom, which I think would describe this track very nicely. In my own defense, I will say that was also a lockdown project and the result of considerable cabin fever and ennui... (The effects were done in Audacity rather than with pedals.)