Some players once asked me why there is no music in the game. The answer was pretty obvious as an indie game without a budget it was difficult to get enough music to use in the game. In addition, there would have to be a lot of it so that it would not get bored with players quickly during several hour-long sessions with the game. Another problem would be the variety of players' tastes. So in the end it was better to give it up completely.
Today, however, the possibilities are much greater.