I've recently become obsessed with Les Miserables and Miss Saigon. The music has inspired me tenfold to compose, write similar music.
I've posted on here before on how to compose, and I'm trying my best but struggling with something:
When you denote the time signature, you also have to say what key it is in, right? For example: A Minor etc... but how do you know what key it is in exactly? It is the first note you play; does that become the key it is in?
I know what I want it to sound like. I have a vision in my head, but I wouldn't (at this stage) know what 'key' it is in.
I am a beginner, but very determined and would appreciate some help.