Giovanni, I suggest you take a look at some of the other threads on this topic, which start with this one:

https://mudcat.org//thread.cfm?ThreadID=35698

Sorry I don't seem to be able to make blue clicky for this. If you can't find it, look for "The 'Celtic Music/Dave Bulmer' saga"

Bulmer appears to have been a very stubborn man, whose response to criticism was to turn his back rather than engage. One of the many tragedies of this sorry matter is that he could have been a hero - he holds the rights to many important recordings and under different circumstances more of these could have seen the light of day, and both Bulmer and the artists could have made some money. I very much hope his son will see the value, both artistic and monetary, in the catalogue and will be more flexible and, dare I say, business-like, in dealing with it.