Just returned from a widely-praised concert in NYC's Carnegie Hall, the MSO performed works by William Walton, Max Bruch (though German by birth, he was the conductor of the Liverpool Symphony) and Ralph Vaughan Williams.
Here is the link to an audio version of the MSO's performance in New York, via WQXR.
For the series of concerts of British music, the guest conductor was Christopher Warren-Green, who is the music director of the Charlotte, NC Symphony and the director of the London Chamber Orchestra, among many other celebrated duties, including for royal events, particularly at the royal wedding in 2011.
The Recessional piece was the first on the program of the MSO concert, the Crown Imperial Coronation March by William Walton. Here is a link to the PBS television excerpt of the wedding processional featuring the Walton Coronation march played by the London Chamber Orchestra conducted by Christopher Warren-Green, about a minute, 20 seconds in, and continuing until the couple left Westminster Abbey. (You can download the entire Royal Wedding Music CD from iTunes.)