> What all these algorithms seem todo is play songs that other people listened to after or before the song you requested. Or they just play something in the same genre.

and I am pretty sure that, under the hood, this is not what they are doing. They really are using individual attributes about the song (e.g., tenor vocalist, minimalism, heavy distortion, etc.) to try and find something that sounds the same.

So I think your real complaint is "I don't think the algorithms are good enough yet, even though they are trying to do exactly what I want".