Found it, at last!
I was searching this disc mostly for historic reasons, to better appreciate MAESTRO Muller-Dombois' playing from the very beginning to his last awesome recordings... but I was - nonetheless - pleased and surprised by the fine music here contained.
Seems only lutanists has the sensitivity and feeling for playing and recording in a natural acoustic environment... and shamelessly pointing it out: the below liner notes were written almost 50 years ago... when other (so called) top musicians were still using fingernails, heavy gauge and tension heavy instruments and playing lute like a pear-shaped weird guitar, too often recorded in a studio with microphones-in-mouth!
I'll NEVER be tired to bless Eugen Muller-Dombois' playing and his paramount importance as a teacher at Schola Cantorum Basiliensis: lute and lute performing praxis wouldn't probably be as we know and appreciate these days, without him!
Eugen Muller-Dombois with his '65 19-chorus Lute made by luthier Sandro H. Zanetti (Pontresina)
Here below find a fine example of another instrument from same luthier: