The sort of song that has something new every time you listen to it. For me, that song is Marigold. I have listened to this song probably hundreds of times (no joke, I have tried to learn it all the way through, it's hard work). Still every time, there is something the drags me to it. The song hasn't grown boring even after hearing nearly every little nuance. It should have because I have [b]studied[/b] this song. I have listened to it normally, without guitar, without vocals, only the strings, only vocals, only guitars, in 432 hz (I don't buy into the whole thing surrounding 432 hz, but it sounded cool), in different keys. But every time I hear it, I find something new. For example, I was listening to the strings isolation just while writing this post and found that they had strings in the guitar "solo" part which I hadn't hear before. Listening to the vocal track, I found the rich harmonies that are so deep in the mix, you can't hear them outside the isolated track, but without, make the vocals feel empty. Just little things like that.