Bela Bartok's For Children is a set of 85 short pieces published in four volumes. The first two volumes were composed using Hungarian folk tunes, and the last two volumes using Slavic folk tunes. They were written for a student pianist, and intended to be either studies or short concert pieces.
This edition has been edited and arranged for two trombones, two trumpets, and for trumpet and trombone. They make nice concert pieces, or study works.