Music, according to some people, makes a meaningful world. It is broad and has many categories or types. I can?t perceive what the world looks like if music is not present and not heard by all people. I feel like the Earth is so dull if music is not around. It may also mean loneliness and sadness to all earthlings.As what I have said, music has its own sets of categories or commonly called as genres. Those genres may be considered as popular (pop), jazz, soul, doo wops, country, alternative, rhythm and blues (R&B), techno, classic, rock, and many more. The most common type of music is Pop, as what the name implies, it really is popular. Nowadays, musicians combine different genres to their songs to create uniqueness or just to make their song appealing to the public. Famous singers and musicians nowadays include 16-year-old Youtube sensation Justin Bieber, Taylor Swift, Mandy Moore, Black Eyed Peas (BEP), Linkin Park, Bruno Mars, Avril Lavigne, many more. If we talk about music it also involves singing. Singing is already part of our lives. We do it in the shower, in the bedroom, and even in the park. You don?t have to own a beautiful voice for you to sing because we all are capable of singing. So if you don?t like singing. When we talk about both music and singing songbooks are there to aid us all the time. Song books are obviously books concerning songs. It may usually consist of the