You can watch the 7-minute promo here.
Kowarekake no Orgol, or Half Broken Music Box if you want the English name, is about a musician. He constantly is trying out at auditions for different things, but fails each time. But one day, a mysterious girl starts living with him, so stuff may change for this poor man.
That’s about all I know story wise, but I know it was started as a dōjin work from Moetan artist POP. From what I have seen, POP has done a good job with the art, so I guess I can know that is good. I have high hopes for this either way.