Also a flutist (though not professional). My take on this is:
- The data on cables does not show anything that would explain audible differences between cheap and expensive cables except if the connection is bad (e.g. oxidation) or the cables are very long.
- Blind tests generally do not show that people can reliable detect differences between cables (but if you ask which one they prefer they’ll tell you).
- Virtually all of the people who sell, and most of the people who buy, expensive cables claim to hear differences.
- What and how people hear is extraordinarily impacted by cognition and context. (remember the experiment with Nigel Kennedy playing in the subway? Or all the auditory illusions where people hear very different words in songs?)
One side of this debate thinks that some people are naturally "Golden Ears" and/or that critically listening trains you to notice differences that non-hobbyists either don’t notice or react to unconsciously. The other side thinks that fools and their money are soon parted.
My take is that you buy a stereo system for nothing but pleasure. If you buy and listen to music through $10k speaker cables, and get $10k worth of pleasure out of it, you got your money’s worth, regardless of whether the positive differences you hear come from some so far undetected physical difference in the electronic chain, or from the way your cognition and your hearing interact. If not, not.
BTW, you're not Loren Lind, are you?