Here is the Merry Christmas program for the Apple 1. My first Apple 1 BASIC program!
It shows a picture of a Christmas tree and plays "We Wish You A Merry Christmas" tune on the ACI output. If you don't have an amplifier setup on the ACI output, you can just use headphones, and you can hear it.
You have to load BASIC, and then load 004A.00FF and 0400.0FFF
It wouldn't let me upload the AIFF so I changed the extension to WAV and added instructions to change the downloaded file to a .AIFF extension. I also converted it to real WAV as well. I tested the AIFF and it works, but I wasn't able to test the WAV yet, but I converted it directly from the AIFF, so it should work fine.
Let me know if you have problems with it.
Anyway, hope you all enjoy it! Happy Holidays!