RolloSONIC is a modular sound-synthesis environment with mouse-guided tweaking and real-time module interconnection. Automated control channel duplexing, a variable-bandwidth control pipe, and multi-device euphony support various possibilities. Like the great module racks historically used
in making sound effects for science-fiction movies, RolloSONIC lets you add and connect audio-processing modules together, where the sound is playing the entire time so that changes to the interconnections and changes to the sliders are heard immediately -- just like with the real thing.
http://www.rollosonic.com/Pages/RolloSONIC_Intro.html