The player seems broken for me in all my browsers. Would it kill anyone to post actual music files?
Edit: This is because I had changed my personal settings for Flash in an attempt to disable "Flash cookies" which do not respect private browsing mode and work across all system browsers, and the the SoundCloud player needed my permission to increase its storage. Because the Flash runtime absolutely sucks, it was "rendering" the permissions window "in" the SoundCloud player, but not within its bounding box -- essentially off-screen.
Anybody still want to argue Flash is … anything positive?