Instrumental Duet,Trombone,Tuba - Level 3 - Digital Download SKU: A0.1316192 Composed by Bela Bartok. Arranged by Alexander Burdiss. 20th Century. 25 pages. Ars Nova Press #904929. Published by Ars Nova Press (A0.1316192). 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 trombone and tuba. They make nice concert pieces, or study works.