I haven't had a fiddle lesson since May 2019, just before we left Norfolk for Yorkshire. I was thinking of finding another teacher after we'd found our new home in Gemtown near York, but then came lockdown.
To keep my hand in, I have a repertoire of tunes, mostly Scottish with some Irish and some Playford, that I try to do each week, though I also revisit sheet music of various sorts - baroque, klezmer - that I played with my East Anglian Fiddle Guru.
The latest tune that I've added to my repertoire is Johnny Cock Thy Beaver, from The Division Violin, the Playford publication of 1684.
http://www.folktunefinder.com/tunes/72280 - if any violinist here would like to try it.
There are other pieces from this book that I've played, including St Paul's Steeple, which I may return to at some point.
Here's the tune played by The Witches:
And here's the sheet music:
https://musescore.com/user/668541/scores/6157264
When I used to play this for Fiddle Guru, I didn't entirely master it. It always felt scary, and it's scarier still now that I'm out of practice - I think my standard in any case has slipped in the two years without a teacher. Still, it would be good for me. Use it or lose it.