How to get a song a little warmer? Just lower the pitch! Someone took Dolly Parton's "Jolene" and played it on 33 rpm instead of 45 rpm. I think it sounds great, it could be a hot indyband with a smooth singer with a golden voice, even the choirs still sound great....
The other way around is also possible, here's Bruce Springsteens I'm on Fire's album version played on 45 rpm, sounds like Dolly Parton :)
For the generation who doesn't get this oldschool terms like RPM and don't know the smell of vinyl... click here
Here are the original versions