The fine volunteers at LibriVox, yours truly included, have produced a 30-song collection of public domain Christmas Carols.  I contribute four songs:

1. God Rest You Merry, Gentlemen (Track 23 @ LV)
2. O Holy Night (Track 4 @ LV)
3. It Came upon the Midnight Clear (Track 15 @ LV)
4. The One Horse Open Sleigh (Jingle Bells) (Track 28 @ LV)

The LibriVox compilation is in mono; DeRamos Music has stereo versions of my songs available for streaming and download (for a limited time) at their website.