Tempo: music should be played at a moderate speed, or a walking pace, halfway between adagio and allegro.
Pachelbel's Canon is the classic example of andante, hence why it is a popular piece at weddings when the bride walks down the aisle. It is a slow walking pace. Listen to the piece in the video below:
Meditation from Thaïs by Jules Massenet is another example of this tempo, as shown in the video below: