Mumford certainly did the Ryman justice instrumentally since they predominantly play acoustic guitar, stand-up bass, and banjo, which is why they have staked their claim in the folk genre. But they play the hell out of those instruments, and bring a strong backing of vocals, which really gives the group their rock undertones.
The show didn't play out quite as planned however as the group stated their nervousness for performing on the Ryman stage several times. It certainly had some affect on the groups lead singer Marcus Mumford as he struggled with the lyrics as well as a bout of coughs on a few of the songs performed which resulted in the songs ending prematurely. I've never been to a live show before where the artists had to take a 5 minute break off stage to regroup during the middle of a set. Some fans were critical of this (And who wouldn't be on Music City's biggest stage) but for me personally it did not noticeably degrade the performance. I'm sure it would have had a larger effect on me if I was more of a follower of Mumford's music or I had a keen liking to some of the shortened songs. However, I personally thought the missteps made for a better connection with the crowd on hand as the group shared their personal thoughts on what its like performing live and dealing with a nervous mind.
NOTE: Mumford played two new unreleased songs. I really enjoyed both. Look for a great second album as summer nears. The release date has not yet been announced.