There is a reason why I have not recommended Band in a Box. In my early days I did try out all these short cut software's. But I found that I didn't actually create anything new.
I don't want to decide what style my song is going to be in before I create it.
I chose chords to go with what chords have gone before and as the melody progresses.
The song writing process for me is a dynamic organic process and the song evolves as I go and becomes whatever it becomes.
I may be foolish, but I do not sit down and decide what kind of song I'm going to write before I start and I know that probably means I'll never sell anything because it's not in a "GENRE".
However I'm trying to put something of me into each piece and starting from someone else's programmed ideas of a rhythm and throwing random chords at it for me has never generated any useful ideas.