I also didn't manage to implement the music properly when I was making my game, I can understand you :)
I'd be very happy to see some more additions, it's great that you're continuing to work on the game :D
Very good update, I loved it! I'm glad you continued the story and added more dialogue. I also liked the addition of the train horn, it was fun to use it occasionally along the way. It's also great that you added music; it makes the game feel much better. It's great to see you've decided to finish this game :D