Tastes in music and favorite genres vary across generations, geographical locations and many other factors. However, popular music everywhere remains one of the biggest sources of entertainment all around the world. Cross-continental music, fusion and various experiments are making the audible form of entertainment one of the most sought after professions as well. Most people like music, although some would prefer less of it. Some people have a problem in associating with certain songs, especially if they talk about a painful nostalgia, or something.