Hi Pip.
The way I understand it, is that Tony was so frustrated by the unwillingness of Celtic Music to negotiate over the back catalogue of his Leader recordings, That Tony just re-recorded his favourites! Subsequently, after his death, His family released "Exe" A collection of out-takes and Live recordings, released a couple of years ago.
I don't know if "Barebones" is still in print, but "Exe" certainly is, and any Tony Rose fans should get a copy immediately.