"they pointed out that the same number of musicians is needed to play a Beethoven string quartet today as was needed in the 19th century; the productivity of classical music performance has not increased. On the other hand, the real wages of musicians (as in all other professions) have increased greatly since the 19th century" This seems painfully naive to the point of farce. Do they really believe the value of playi…
Seriously. They also ignore the fact that the productivity of classical music performance has increased. Four musicians and their instruments can perform a string quartet for a crowd the same today as they could in 1850. Four musicians and an engineer with instruments and recording gear can record that track today and make it available to the masses via one of a number of media vehicles-- and that recording and those…
But we should ignore that, because the point of the comparison is to find something that hasn't changed between now and then and compare the cost of labor. This is of course cherry-picking, but it's not intended to be typical. It's a striking example.