Brahms and Dvořák wrote duets in broadly folkish styles with sophisticated piano accompaniments, which sold like mad. Typical customers in the Netherlands (and elsewhere) were rich merchants who organized private concerts ("salons") to showcase their daughters for matchmaking among carefully selected guests of equal status. Fishermen rarely owned pianos.

The era of widespread "huismuziek" would be the 20th century, pre-'68. In fact I am pretty sure that nowadays more pianos are being produced than ever before, although it is no longer in vogue to force one's daughters on the piano stool. (Still, music is a matchmaker, for both sexes.)