"Adam Smith often used musical and synchronous figures of speech to conveySmith was not alone in the use of this analogy, though. Two other cases immediately come to my mind - Bastiat's Economic Harmonies, and Carey's The Harmony of Interests, both of which remark on the point that interests that at first glance seem to conflict actually progress in harmony and are naturally complementary. I seem to remember this sort of language being applied to republican political philosophy in Drew McCoy's The Elusive Republic as well. Liberalism and republicanism are dispositions that have always emphasized the inherent harmony of society, despite the superficial chaos. The harmony is that much more impressive when we relaize that there is order to that chaos.
the notion of sympathy, as when our sentiments “keep time together.” In this
way Smith explored social cooperation or “harmony.”"
Does anyone else have any other examples of thinking about human society or political economy in terms of "harmony"? I'm sure there are many.