Publisher Desc.  This Brass Choir arrangement is a medley of three familiar Christmas carols: "O Come All Ye Faithful," "I Heard the Bells On Christmas Day," and "Go, Tell It On the Mountain." The instrumentation is for 3 Trumpets, 2 Horns in F, 3 Trombones, Euphonium (bass and treble clefs), and Tuba. This will be a nice selection as the offertory or special music during a Christmas church service. It also is a great piece for a school Christmas concert.