Ableton seems like it would be a great place to work. Enabling creative people appeals to me a lot more than putting yet another spin on social networking.
But the web-team is large enough to also offer more back-end related work, which is the reason we advertise Python-developers instead of Web-developers only.
I fear though that this is not really that much different from another spin on social networking in the end.
I guess this is unavoidable in just about any web development job these days but at least the context is a little more intrinsically interesting at Ableton. At least to me.