It depends on the type of work that you are doing. Some things are so interesting that music becomes irritation while doing those things. Sometimes you do want to add some music to your work. Call it crazy or whatever, but when I was in high school I would do my homework while playing music.
Lying back in your room, under the ceiling fan, playing some soft ambient electronic music while reading a nice book is something that is beautiful, in this case music is fun to listen to while doing something else.