Nice ideas, but it needs severe editing to work as a valid grid, as several answers can swap with each other between groups, which makes it unsolvable except by pure luck/being the setter. I'll give a few examples. Falsettos and Falsettoland (which is actually act two of Falsettos), were both composed by Finn, and written by Lapin, so can swap between those two groups. In the Heights won the Tony for best musical, so could swap over from the movie group, with Annie , or Phantom.