I’m totally happy with my Prim Nyckelharpa string set. Concord was flexible enough to provide the same gauge strings my ‘harpa’s builder used on my instrument. The is more important than it sounds, since the tangents on Nyckelharpa keys are adjusted to play in tune with the specific strings on the instrument. If the string is a different gauge, the entire group of tangents for that string must be retuned. Doable, but tedious!
Additionally, Concord’s price for the strings is the best I’ve found, and I spend far too much time researching such things.
Thanks a million, Concord!