What do you mean “Traditional services”? The services differ wildly between Lutheran, Methodist and Baptist
Not a rock and roll service. Some Baptist Churches have two Sunday services. One with an old style traditional format where people actually dress for church and there is a choir. Typically an older crowd. The traditional is usually earlier and the other starts at 11pm (if they have two services).
The “contemporary” services do not have a choir but instead a band and most attendees wear shorts, flip-flops, and drink coffee drink service. They are a younger crowd with the requisite tattooed and ear pierced youth director.
Our pastor actually stated during one contemporary service that the attendees should seek out the old sect of the church and thank them because it is by their generosity and tithing that allows the two service format.
The pastor’s message is typically the same but he may change a few words here and there. The difference is mainly the crowd and the music.