On the 25th of the 12th

This seasonal swing tune was made famous by its inclusion on the soundtrack to the Netflix series The Queen's Gambit, and though dating from 2012 is clearly written to evoke the world of mid-C20th Christmas classics. It is beautifully suited to close harmony - indeed the recording from the series has a quartet singing the final section.

The arrangement is primarily homophonic except for the second bridge, which hands the melody round around between the parts for variety.