You can freely and lawfully download a printable score for this Work from Cantorion - though it may not be exactly the same as the one used to make the Midi Files below.
There is an excellent performance of this Work by the Monteverdi Choir starting here.
Much - but not all - of this Work was keyed in from the Barenreiter Urtext Vocal Score. Much - but not all - was keyed in using the "old" Novello score. Note that the new Novello edition may in places have different words - and different "titles" - for each piece ... but the notes are, I think, much the same.
Here is a "clickable" Table of the available Midi Files for this Work:-
Part 1 is immediately below. Part 2 is on the next page.
|The Christmas Oratorio - Part 1|
|1: Christians, be joyful|
|2: Now it came to pass in those days
3: See now the Bridegroom
|4: Prepare thyself, Zion||None||None||None||None|
|5: How shall I fitly meet Thee?|
|6: And she brought forth her first-born Son||None||None||None||None|
|7: For us to earth He cometh poor||None||None||None|
|8: Mighty Lord and King all glorious||None||None||None||None|
|9: Ah! Dearest Jesus|
That's the end of Part 1. Part 2 is on the next page
And if something doesn't work properly, please let me know (see the "Comments" section of my Homepage).