Help requested (from older listeners)

[mprince44]

Back in the late 60' or early 70's, John used to play records by a group of fiddle players from some island up in the North Sea.  It might have been the Friesians or something, but I can't remember. The name of the band sticks in my mind, but I have no idea of the correct spelling. Phonetically it was something like:

Speiler Menila Oy Hoy De Lum

Not knowing how to spell the name, all internet searches proved fruitless.

Can anyone help please?

Thanks.
Michael