Vivat Leo! is the magnificent result of Cappella Pratensis decision to work more frequently with guest conductors. Says Artistic Director Stratton Bull: Our partnership with Joshua Rifkin has perfectly met the objectives behind this decision: to make use of the expertise and ears! of a respected colleague with a deep understanding of our music, while at the same time offering that colleague an instrument to play and exposing him or her to an approach to music-making that is at once extreme and (we hope) extremely appropriate.