After a national tour in celebration of the 50th anniversary of Garrison Keillor’s A Prairie Home Companion, APHC is back on the road, giving fans another chance to witness this iconic piece of American culture. The troupe is pleased to again be taking the stage at the Strathmore Music Center — always a favorite stop. Joining Garrison are music director Rich Dworsky and the band, actors Tim Russell, Sue Scott, and sound-effects wizard Fred Newman, and guest performers too.