One of the reasons this band has been effective in spreading the New Orleans style sound is that their large stable of musicians allows them to maintain their regular schedule at Preservation Hall in New Orleans while keeping up a grueling touring schedule. To me, and important part of this style is being able to experience in person, and the Preservation Hall Jazz Band has played a large roll in making that possible for as many people as they can.
I think the record included below, Santiago, demonstrates the way the PHJB blends brass band music with the modern jazz ensemble format. This particular track is based on a latin beat which is carried mainly in the piano. Over the top of the driving rhythm you can hear the traditional party atmosphere over the top in the brass and reed sections. One thing that continues to shock me when listening to these records is how bands can bring the spontaneous atmosphere of a live performance into the recording studio.