The issues with the UI/UX are obvious and there are clear ways to improve on the situation. A number of people have done unsolicited Soundcloud redesigns, but there was an excellent one in December 2014 that is worth taking a look at:
https://medium.com/adventures-in-consumer-technology/redesig...
In addition to showcasing a beautiful, thoughtful redesign, this post makes a series of criticisms that are both justified and still in urgent need of rectification. For example, in the stream:
* It’s hard to discern which song is playing.
* Only three to five songs are visible at once.
* The Stream doesn’t automatically scroll.
* The avatars [of commenters] on the waveform are virtually meaningless.
* Reloading the Stream is slow and clunky.
I would really hate to lose Soundcloud, as a long time fan of electronic music (going on 20 years now!) it's been a big part of my life for years now and I love it.