[Schumann] The Piano Quartet in E flat major, Op. 47, by Robert Schumann was written in 1842. It has been described as the `creative double` of Schumann`s Piano Quintet, also in E-flat major. It is one of the most frequently performed and recorded piano quartets in the standard repertoire. == Background == The work was composed in 1842, dur... Found on http://en.wikipedia.org/wiki/Piano_Quartet_(Schumann)
A group made up of one piano, one violin, one viola and one cello - or a piece written for that combination of instruments.
Found on https://www.encyclo.co.uk/local/20508