I found this on the internet:
Fun-A-Day Inspirational StoryThere is a Pittsburgh punk tradition called "fun-a-day." For the entire month of January, fun-a-day project participants pick something and do it every day.
Jonathan Mann has also started a new concurrent and similar challenge "Jamuary" in which folks make a song every day. He's completing 10 years** (!!!!) of making a song a day today. It all started with him making a song a day for Fun-A-Day in 2009.
*I didn't find a specific music challenge, but we do music so music it is. Notice I said music and not songs. I'm just aiming for something musical every single day.
**Looks like this page/info is still up from last year but I'm still gonna try and do it.