I agree with Kirby Ferguson’s when he says, “everything is a remix”.
I’ve a passion to compose songs for my band and for my personal interest and I know that not always you’re inspire to compose some sweet arrange of chords, and also some nice lyrics that goes with that. In my case is almost every time I start likening a girl. In the article of “The Ecstasy of Influence” there’s a phrase that Kenneth Koch said, “I’m a writer who likes to be influenced” that is something that I like too and I believed that influence is shown in the songs I compose, even though at that moment my conscious makes me believe all the inspiration comes from a feeling I know that while composing my unconscious makes me seek for chords I’ve heard before and were of my pleasure, so in a way the final song for my “girl” will end up being a remix of many songs I heard sometime and I like them.
The amount of chords and the progression of them aren’t enough for the billions of songs that already exist in the whole world and the billion more that would appear in the following years. So I think is a must of lots of similarities between songs. A quick example, yesterday when I arrive home my roommate was hearing a French song (first thought it was Russian the language) that remain me a lot to a Mexican bolero, paying attention the similarity the songs had was the chorus and only were difference in the last note of resolution. I’m not a passionate reader or movie watcher, but I think it also happen in this arts.
About the copyrights and patents, in the beginning was an idea to protect the artists or inventors, than then it was distorted when someone saw a way to make tons of money suing other people for plagiarism, and the worst of all is that when plagiarism occurs with artist that have a big label to protect them nobody makes a big fuzz, but when it’s another type of artist demands start raining even in the sunniest day. Here I leave the example of Shakira’s “waka waka” song for the worldcup in 2010 http://www.socinfo.com/shakira-plagiarism-fifa-world-cup. Probably because all the media complains against these the original artists received some money.