Brass Ensemble,Trombone Quartet Bass Trombone - Level 2 - Digital Download SKU: A0.782043 Composed by Larry Gatlin. Arranged by Aaron Hettinga. A Cappella,Contemporary,Praise and Worship,Sacred,Spiritual. Score and parts. 8 pages. Aaron Hettinga #6096885. Published by Aaron Hettinga (A0.782043). This A Cappella performance by the Gatlin Brothers is presented here for trombone trio or quartet. As the Gatlin Brothers are a vocal trio, playing this arrangement without the 4th part will still remain faithful to the original performances.