Mixed (SATB) voices & piano or small orchestra.

Instrumentation:
Here we come a-wassailing: 2fl, 2ob, bn, 2hn, 1perc, hp(opt), str
The infant King: fl, ob(+ca), 2hn, hp, str
Shepherds' Noel: 2fl, 2ob, bn, 2hn, hp, str
Quittez, pasteurs: 2fl, 2ob, bn, 2hn, 1perc, hp, str
Stille Nacht: 2hn, str
O come, O come Immanuel: 2ob, 2hn, org(opt), str.