Is there a way to "slow down" a bluegrass realtrack so that it can be used in a country song. For example, I am working on a CD project for a client that is all new compositions. He has one song in which I'm using the Memphis Swing Fast Style at 196 bpm. I'd like to use a banjo playing rhythm such as style #589. I cannot figure out a way to "slow" this track down so that it can be used.
I'd appreciate any help. Also, I believe it would be a good upgrade for RealBand if the bluegrass instruments could be used in other styles such as country.

Thanks
JMK