Best way to choose your wedding song is to first decide which type of party atmosphere your want? like do you want your wedding songs to feel like dance club or more family party. You should consider these things while choosing music for your wedding event.
At the event You will be having the Guests of many different ages and personalities so first know your audience is another thing to remember as music reflects your testes. On basis of these decide you need live band or DJ which is preferable to you.
While choosing playlist start choosing the song early as possible so start the playlist choosing four to five months before your wedding. Start the list with songs which are known songs to you, or you can use existing music collection of yours for that.
After choosing the songs Break it Up into parts like Pre-ceremony, Cocktail hour, Dinner, Dance party etc, just remeber to pick populer songs as the goal of the wedding is to get people dancing.
Make sure that you have customize option for your playlist so that you can present different styles of options for songs as your music choices set the tone for your wedding