The Concertino for Horn and Orchestra in E minor, J188 (Op. 45), was composed in 1815 by Carl Maria von Weber. It is an extremely taxing work, whether played on the natural horn for which it was written, or on the modern valve horn. The soloist is accompanied by a small orchestra. It requires, among other feats, that the player produce what is in effect a four-note chord using the interplay between humming and the sound from the instrument, a technique known as multiphonics.

Date of composition 1806 (revised in 1815)
First published 1818
Type Concertino
Tonality E Minor
Catalogue J. 188
Approx. duration 15 minutes
Instruments Horn
Autotranslations beta Carl Maria von Weber: Concertino pour cor en mi mineur, J. 188
Carl Maria von Weber: Concertino per corno in mi minore, J. 188
Carl Maria von Weber: Concertino für Horn e-moll, J. 188