JUCE

“JUCE is an all-encompassing C++ class library for developing cross-platform applications.

It’s particularly good for creating highly-specialised user interfaces and for handling graphics and sound.

The intended users are developers like me, who are writing large, complex applications in C++ and who would like to use just one clean, high-level API rather than a bunch of different [...]

I want!

In fact, so does my girlfriend

emagic have release AU’s of EVP73 and EXSP24 that actually work in apps other than Logic. woo!

Now I can use them in Live 4 and Rax!

Download here