The harmony, melody and rhythm are all the elements of music and they have to be held together in a particular form. Only then they will be pleasant to your ears. The verse and chorus structures or what is known as AB form are the elements that make pop songs like Adele Rolling in the Deep more famous. You can find modern pop songs with the form as intro, verse, chorus, verse, chorus, bridge, chorus, outro forms. The style of the music is very important. You would have heard so many styles of music such as pop, gospel, swing and rock. Each one of them has its own melody, harmony and rhythm. You should know to differentiate each one of them and learn the methods of interpreting them correctly. There are so many styles, genres, shapes and forms of contemporary music and you have to develop a healthy listening habit if you should practice Adele Rolling in the Deep cover and analyze all the elements of music such as melody, scale, chord, feel, form and style. Only then you can make music an audible art.