Why not? They have it, to buy 4th-level monsters, and to sell and exchange them for gold. I like the music, except for the one in the Necropolis castle; some kind of orchestra is playing.
The music in Inferno is worth noting; it's even a little funny. ;)
In general, I would change the music, making it instrumental, because people have different musical preferences.
P.S.: Maybe someone doesn't like opera..
I also forgot to mention that the music in battles is monotonous... (More tracks should have been added).
Added 1 minute ago
How long did it take to make the fourth game? :confused: