The classical-popular divide is a nineteenth-century invention, not an eternal truth

Ross traces how the sharp separation between "serious" concert music and popular entertainment music solidified largely during the nineteenth century, as concert halls, conservatories, and a self-consciously elevated canon of composers emerged alongside a growing middle class eager to signal cultural refinement. Before this period, the boundary between music intended for elite audiences and music intended for broader popular enjoyment was considerably blurrier.

Composers earlier in music history routinely wrote for a wide range of contexts and audiences without the same anxiety about crossing a supposed prestige boundary, and popular tunes, dances, and folk material regularly worked their way into music now considered part of the elevated classical canon. The hierarchy that later generations treated as timeless and natural was, in Ross's account, actively constructed within a specific historical window for reasons partly aesthetic and partly social.

Understanding the divide as historically contingent rather than natural opens up the possibility of dismantling it, or at least questioning why it still governs so much cultural gatekeeping today.

Takeaway: the wall between 'serious' and 'popular' music isn't ancient wisdom — it's a nineteenth-century invention that outlived its original purpose.