Nothing serious at all, she goes mostly for appointments. She doesn't drive, so I take her to appointments, plus her doctor speaks Spanish so I don't need to be an interpreter. Also those same songs you mentioned are on my cell phone.
"Dream Evil" is also a really great album. Songs like "All the Fools Sailed Away", "Overlove" & "Night People" aren't as popular as they should be. And having a cellphone with MP3 is a must. Mostly for public transport, as you said.
It sucks that you have to wait so long in the waiting room. I'm sorry for your grandma, though. Is it something serious?
"Holy Diver" and "The Last in Line", are two best Dio albums out there. Can't be missing from my collection. Along with a few songs from the other albums (and many songs from other similar artist I listen too a lot), I have them on my cell phone, so when I'm not home I can listen to metal on the road (that is if I'm not on my car, say more like Public Transport - bus, light rail. Or when my grandma has doctor appointments. I could be up to an hour in the waiting room)
I was listening the other day to my cassette version of "The Last in Line" in my blazer (has no cd player - radio got boring) then I remembered, there's a Dio fan on PokeCommunity. Spent all day trying to find your user name and finally did. Rock on.