Name the type of funeral music characterized by slow, sad, music being played before interment followed by upbeat, celebratory, music afterwards? Where did this type of funeral music have its origins?

This is called New Orleans Jazz Funeral music. It is characterized by somber, sadder music being played to begin and then after the intermet there is a change to very upbeat trumpet and jazz music. It is a custom in New Orleans and the band is usually composed of brass instruments in the form of a marching band.