"does not necessarily" -> "can have an opinion [...] depends on one's values"
This was in response to your original statement: "it makes no sense to say that 2015 music is necessarily better than 18th century music".
I am stating that the superiority of one type of music, period or composer over the other is subjective, that is, that the value judgement changes depending on the person. Therefore, it does make sense to say that one is better than another, even if this value judgement varies between persons - you need to frame the argument.
This was a sideline prompted by the idea that technological progress is objective (including in music); that is, one cannot argue rationally against the idea that knowing nuclear engineering is an improvement over not knowing nuclear engineering, regardless of its usage, that ignorance is never desirable. Science is the discovery of facts about nature through reason, even if the process itself is filled with uncertainty and "progress" between dogma (the earth is flat, then round, the centre of the world, then not...). Science can approach objectivity, which the arts cannot (even that judgment is subjective).
We appear to disagree here as you do not separate the knowledge from its intended use ("Is the progress bring made in the name of humanity or in the name of technology?") and therefore create cases of "desirable ignorance". I consider that this brings unwarranted subjectivity to the argument as "humanity" needs to be defined (Imperial Japan would disagree that their defeat and restructuring in 1945 was done in the name of humanity, which much of South East Asia at the time considered a good thing; in the Japanese narrative, a global or much larger Empire of Japan would be a net positive by bringing Japanese civilisation to the barbarians). As far as I am concerned, the misuse of technology is a squarely political and/or philosophical problem separate from science and the blame goes to the users, not the scientists. Further, intention does not guarantee outcome: nuclear weapons have basically averted any new global conflict after WWII via MAD, but they were not designed with this purpose in mind. Apologies if I misunderstand your position.
