The Christmas Gig Book vol.2 :

for 2 trumpets, horn in F, trombone and tuba
trumpet 1
KAMMERMUSIK
BLECHBLASINSTRUMENTE
QUINTETTE
Marlatt, David, arr.|O come all Ye Faithful|A catalonian Christmas Carol|The Holly and the Ivy|Deck the Hall|Still still still|Hark the Herald Angels sing|Wassail wassail all over the Town|Ding dong merrily on High