Antonín Dvořák composed his Piano Trio no. 4 in E minor, Op. 90, between 1890 and 1891. It was premiered in 1891 and first published in 1894 in Berlin by N. Simrock. The work comprises six movements and lasts around 31 minutes. It is also referred to as B. 166, according to its entry number in the Burghauser Catalogue of Dvořák's works.