These arrangements are playable on both lever and/or pedal harp. There are very few harmonic adjustments, but all are indicated according to the standards of both types of harp.
Austria Still, Still, Still
Czechoslovakia Come, All Ye Shepherds, Rocking
England Away in a Manger; In the Bleak Midwinter; The Holly and the Ivy
Ireland The Snow Lay on the Ground
Poland Infant Holy, Infant Lowly; Lullaby, Jesus; O Come Rejoicing
You can see and hear a medley selected from these carols on YouTube.