There is a form to how music is produced for radio and iTunes replay. That same form doesn't always go over well for live shows. Your track listing sounds good on CD but in the live arena sometimes fans are left disengaged. Those potentially powerful moments were just missed by the fan checking his/her mentions on a social network or just looking elsewhere. You played your music but did you make any new FANS?
Here are some reasons why:
1. People hear with their eyes. The physical part of any performance (movement, positions, body language etc) needs to match and enhance the musicality of the song. Often they do not!
2. Music is presented as “goulash” - Itʼs important to separate the great parts and “tell” the audience what to pay attention to.
3. The audience is often ignorant to musical things - Simplify, slow down, take your time in order to connect emotionally with your audience. If they do not connect emotionally they will not become your fan - Don't be in a hurry!
Audiences come to a show for 3 reasons:
1. The want to experience moments
2. They want to be captured and engaged
3. They want to have their lives changed
When evaluating your live show, put yourself in the position of the audience. Anytime you would be tempted to look at your watch is a good opportunity to make the song/show more interesting.
What is the last show you attended where you left more of a fan of an artist/band than before?

Source: Bandzoogle