I believe the answer is Harmony. The balance between dissonance and consonant chords will create a pleasant feeling in our auditory system. For most listeners, harmony would be the main indicators that we use to determine the quality of a song.
<span>A series of chords that consecutively follow each and then repeat is called a harmony. A harmony is played by consecutively playing the notes of a chord in to and fro manner. This creates a pattern which helps the musician to give a magical touch to its music and also also give the audience a soothing experience.</span>