... the Band, the Final Procession and one more Set of Horns.

The procession approaches the gates of the hotel where the Groom will leave his carriage and be escorted by his family to the ballroom where the guests are waiting.

There is one more group of trumpeters to harold him into the building...  this group of three horns is most picturesque.  I've never played a wind instrument but I'm guessing it must take a huge amount of wind to get a sound out of these.