Musicians can have varying opinions of their own in regards to what they want to play. Make sure when you go to hire a musician that you get one that is going to perform in the style that you prefer and like. Provide them with your music selection and tell them what and how it is to be played.
When looking for entertainment for a wedding reception you may want to consider adding on a traveling musician. It could be as simple as a violin player who will go from table to table to set the mood as the guests are arriving. This will give you that special person to perform as you want.