hi pfiddle and welcome to the site and forum.
My wife also plays fiddle, if you have any sheet music for trad. irish that you could email me that would be fantastic.
She is playing by ear and improvising with me playing, but she is wanting to do more sort of harmonising with the fiddle rather than just play what i am playing.
She has been playing for a couple of years, had some training and learned her scales.
Any other help would be good. Hse keeps going on about getting a fiddle book with the music but we have not found any yet, apart from stuff online but she likes to see it first to make sure it is in the same key I am playing ( mostly G's and D's) but the books we find are all higgilty piggilty
Ken
ye get some that are cut out for the job and others just get by from pretending