I've just released my Faust module for the Q programming language. A
realtime synth application based on this module, QFSynth, is also available.
Faust (http://faudiostream.sf.net) is Grame's functional DSP programming
language. Q (http://q-lang.sf.net) is a general-purpose functional
programming language with an extensive collection of multimedia-related
modules. If you're a developer interested in modern FP tools for
multimedia and DSP programming, you should definitely take a look. ;-)