Many books and blogs offers you long lists of dos and don'ts. As a songwriter for musical theater you may get confused about which lists makes sense and which ones can just be ignored. Each list is simply the personal opinion of whoever wrote the list. I used some of those list and changed it a bit to my own liking, reflecting my own experience and opinions.
Everybody has their own lists of dos and don'ts, and I would love to hear from you what you think, so please add your ideas and opinions in the comments below. Here is my list of things which you should not do of you want to wrote songs and music for musical theater.