I had never seen Mary Chapin Carpenter play in unison with Shawn Colvin and was frankly blown away with her prowess.
Here I heard two excellent musicians sharing their best in guitar and voice. I was particularly drawn into Shotgun Down the Avalanche which is one of my long-term favorites of Shawn Colvin. In most cases they performed together either with both on guitar or with one providing harmony or backing vocals: what an absolute musical pleasure. Instead, they came to sing / play music together as two friends sharing their renditions of other artists songs (End of Innocence by Don Henley and Bruce Hornsby, Catch the Wind by Donovan, etc.) and interspersing many of their individually created songs. I was envisioning an opening act followed by another (main?) act. How do two beloved artists share a concert stage.