What does this mean?

On the library list serve, LM_NET, a librarian shared this list of Christmas songs retitled using a thesaurus and dictionary!

Put on your thinking caps to figure out the titles (answers on Tuesday):

1. The apartment of 2 psychiatrists.
2. The lad is a diminutive percussionist.
3. Decorate the entry-ways.
4. Sir Lancelot with laryngitis
5. A B C D E F G H I J K M N O P Q R S T U V W X Y Z.
6. Present me naughty but dual incisors for this festive Yuletide.
7. The smog-less bewitching hour arrived.
8. Exuberation to this orb
9. 288 Yuletide hours.
10. Do you perceive the same longitudinal pressure which stimulates my auditory sense organs

Happy holidays!