Hi Brent
I’m curious. Are you asking for yourself, or for a violinist you know?
Yes, many of the ornaments used by fiddle players are direct equivalents of what is done on the whistle. Both cuts and rolls are very similar.
However, here’s a word of advice from a fiddle player who has taught many students to cut and roll - don’t try to learn it from a book. At least, not rolls. It’s practically impossible.
You can learn rolls perhaps with the combination of a book and many hours of listening to good fiddle players on record, but it’s hard. I know, that’s how I did it, and I don’t recommend the method.
If you can play rolls properly on the whistle - and it’s amazing how many people cannot - you may be able to transfer your knowledge onto the fiddle.
But the thing to do is to get a fiddler who knows what she or he is doing to show you.
That said, here are some tips. Most fiddlers use the third finger to cut notes that are played with the first or second fingers. Use the fourth finger to cut notes played with the third, obviously, and use the second or the third to cut notes played open strings.
If you’ve ever watched traditional fiddle players doing this, you’ll notice that most of them use a kind of “cat’s paw” motion to perform the cut - the curled finger almost plucks the string.
There are other ornaments used by fiddle players, one of the most common being the “treble” or fast bowed triplet, similar to triple-tongued trebles used by a minority of whistle players.
But as I say - if you try to follow what it says in a book, without seeing how a good player actually executes these ornaments physically, you’ll almost certainly get it “wrong” - and, free spirits please note, I use this word advisedly.
Best of luck
S