This is a 6pc Brass Choir version of "Tis a Gift to be Simple" "Appalachian Spring" inspired by Aaron Copeland and more recently made famous by the Musical "Blast"  This arrangement is inspired by the "Blast" version but done for 6pc Brass Group.  This is moderately difficult.  The Instrumentation includes 3 trumpets, a horn, and 2 trombones, with a piano/organ part.  Very playable and inspiring.