Well named for its highly musical song, produced by both sexes, the Musician Wren is found widely albeit at low densities across Amazonia, from Venezuela and the Guianas in the north, to northern Bolivia in the south. There is considerable geographic variation in plumage, with some of the eight described races having a white postocular stripe and conspicuous white streaks on the rear ear coverts and nape, while there are also striking differences in the overall plumage color of some races, especially to the underparts. Vocal differences are also evident, and a taxonomic revision appears likely. This beautiful wren is found in most primary forest types, including várzea, at least locally, and although primarily a species of the true lowlands, it occasionally ascends as high as 1400 m. The Musician Wren forages mainly on the ground, sometimes following army ant swarms, but is usually seen alone and it does not appear to join mixed-species flocks. The diet largely consists of invertebrates, but some fruit is also taken.