"Nothing exists until it is measured." - Niels Bohr
I think we will never know if Bohr was an audiophile - as far as we know he never used a Brüel & Kjær soundmeter to check his sound system. But he was a close friend of Per Vilhelm Brüel, the founder of Brüel & Kjær.
I think Physics students when they google Neils Bohr for their research will land on this forum, then read this thread and the audio science one, and get hooked into audiophilia forever.