Soundcloud has some of the best damn music. It'd be awful if it disappeared. I'm surprised nobody, including Soundcloud themselves, have developed tools to remix, sample, dj, etc. the music library on Soundcloud. They have tons of great stuff to sample/remix etc.
I'm not terribly surprised. The rights management around that is incredibly expensive and very complex. I also have vague memories of some startup circa 2011/2012 that did live DJing that ended up dying pretty quickly
That's not actually true within the US. Each song sample needs to be licensed individually. This becomes more complex when a song you want to remix contains samples of other songs. In general, this has become prohibitively expensive, which is why most modern songs only have a few "samples". Any company that does remixing as suggested above would have to manage the licensing in some way or pass on the risk to the users while still risking lawsuits from the music industry.
