Angels We Have Heard on High is taken directly from the second of the Christmas Suites. It is short, brilliant, and has an interesting modulation.
 

It is available from Cimarron Music, see: http://www.cimarronmusic.com/carols-for-brass-set-1284

 

 

This piece has not been recorded, so the mp3 file is a FINALE MIDI audio extract (not the greatest sound, but certainly gives you the idea of how the piece goes).