I like this idea, I do something kinda close to it which is every 2 months or so I have the talk with myself and say you gotta go to the gym more, gotta stop ordering take aways etc.
This forces me to go to the gym for about 4 weeks and then during the second month I sort of descend back to steady state, then comes the talk again and the cycle repeats..
It seems to keep me fit enough as that's usually one of my main resolutions.. Possibly due to it being on my mind early January after eating loads at Christmas..
I like monthly resolutions though a lot as it allows me to think about introducing new elements into my life I might not have thought of. Like your local music idea, there's no way that would have come up in January I'll bet.
Also I commend you on your reading a book a month, I honestly just don't have the time but it's something I would love to do. After coming home from work and then studying the last thing I wanna do is more reading..