As streaming music on Second Life is a huge, huge part of my preferred immersive experience, this may be a useful issue to track:

Rumors have surfaced that the owners of FMOD have pulled from their website archives the zip files used to build FMOD libraries.

Recent attempts to build 3p-fmod locally seem to confirm the rumors.

Kokua uses an open source solution, openal and gstreamer010, for streaming audio.
We have provided this solution to Linden Lab for inclusion in the SL viewer. The changes can also be applied to third party viewers.

via Kokua team provides an alternative to FMOD streaming audio. at Kokua/Imprudence Blog

I haven’t tried Kokua in a while – it’s still in beta, for good reason: they’re working on it continually and working on different aspects. If they locked in a final version, they’d have to start to nail things down in a particular way. May have to give it a whirl again soon.