70, is a chamber music piece in A-flat major for piano and horn (optionally cello, double bass, viola or violin) by Robert Schumann.
Schumann planned alternative editions before it was printed in which the horn or cello or violin could be replaced.
The title was initially intended to be "Romance and Allegro".
[1] Shortly after this work was completed, Clara Schumann commented that it was "just the sort of piece that I like, brilliant, fresh and passionate.
"[2] This article about a composition for a chamber music group is a stub.