Winter Holiday Fun

Translate these encoded holiday song titles into their more familiar form.

1. The lad is a diminutive percussionist.
2. Stepping on the pad cover.
3. The red suited PA is due in this burg.
4. Cup-shaped sounding instruments fashioned of a white metallic element.
5. The apartment of two psychiatrists.
6. Decorate the entryways.
7. Sir Lancelot with laryngitis.
8. Far back in the hay bin.
9. Tiny little Alan, Martin, and Nat.
10. Uncouth Dolf has his beezer in the booze and thinks he is a dark cloud's boyfriend.
11. Duodecimal enumeration of the passage of the Yuletide season.
12. Leave and do an elevated broadcast.
13. Our fervent hope is that you thoroughly enjoy your Yuletide Season.
14. Small Israeli urban center.
15. Listen, the winged heavenly messengers are proclaiming tunefully.
16. As the guardians of little woolly animals protected their charges in the shadows of the night.
17. Behold I envisioned a trio of nautical vessels.
18. A parent was observed osculating a red-coated unshaven teamster.
19. The primary ABCDEFGHIJKMNOPQRSTUVWXYZ.
20. I'm fantasizing concerned a blanched Yuletide.