If the teacher's teaching is like music, then for some students it will be really helpful in absorbing the course content while for others it will be sleep inducing. Overall, music helps in relaxing your mind and a relaxed mind can absorb great deal of things.
Importantly, what is music to you may not be music to me!
There is no specific classification of the idea of listening to music or songs during the academic achievement, they vary from person to person depending on the nature of the personality.