http://www.agnula.org/
AGNULA (acronym for «A GNU/Linux Audio distribution», pronounced with a
strong g) is the name of a project funded by the European Commission
http://europa.eu.int/institutions/comm/index_en.htm (number of
contract: IST-2001-34879
AGNULA was a proof of concept and AFAIK budgeted by the EU for 2 years only,
thus will not be developed any further unless someone else will take this.
The project started on the 1st April, 2002 and will end on March 31, 2004.
A more committed solution for professional musicians is PlanetCCRMA,