Music can be objective, listing all songs in order from good to bad is possible.

My opinion is that music really can be listed from good to bad. The reason why I've come up with this subject will make it easier for you to picture. Plenty of people nowadays, especially children, will be a fan of a certain artist and believe this artist as the best. An example is Justin Bieber: very popular amongst teenage girls, yet any music critic will be able to tell you that his music is of low quality. That is, ofcourse, when working with comparison. You can't judge a song unless you compare it to a similar song. Yet, when you'd compare a true fan's favourite song to a complex and beautiful composition of Mozart, he'll deny that Mozart is melodically stronger. The best comparison I can find is Bohemian Rhapsody by queen, as everyone knows that particular song. Unfortunately, children don't actually want to admit that this song truly is better than anything they like. This is why I've come up with this debate, and here's where my personal opinion begins: nowadays, people fail to see that rythm and melody are the essential parts of music and now they value the decorations such as lyrics, or in the case of Bieber, even looks. I believe that the true strength of music lies in rythm and melody, and that things like lyrics, instruments or the voice that sings the song are just decorations, side things to make it only slightly better. But, in the end, a song with a better melody sung by an ugly voice will still be musically better than a simplistic song that was sung by a great voice. As an example, I'd say that Smashing Pumpkins (with Billy Corgan's ugly voice) are still better than Adele and her beautiful voice. This is then my -kindof- second opinion: you can list all songs by quality. To do this, you would have to focus on rythm and melody, and take away all decorations; all songs are sung by the same person, all instrumentals played by the same instrument (For example, a piano). But then again, no human can make this list as it is hard work do determine the minor differences between two songs by the same band. One person is simply not capable of this, you would have to ask the entire world to choose between 2 songs and even then it might be 50-50. So, it is impossible that such a thing would ever happen for every existing song. What we could do, is make a list that includes only the very best songs ever - although people would still vote for the song that plays in their head. You wouldn't vote for Adele's melodies on piano if you had never heard them before, but exactly BECAUSE you know the song, you'd still vote for it. That is just plain wrong, as people simply vote for the "decorations" like Adele's voice rather than for the actual melody behind it. My final point is that such a list does exist, as one melody will always be better than another. It's just that at this moment, humans are not capable of determining which song is better. In the end though, when comparing 2 songs, one will always be the victor. That immediately results in one song being on the very top of the list, and one song being all the way down. This might be hard to understand, I hope con will set out his opinion elaborately as well!