After carefully reading the description of the modulation matrix i'm sort of disappointed that it does not emulate the ems synthi matrix more. Part of the genius of the synthi path matrix was that you could make circular patches. patch osc 1 to filter. the filter output goes back into the matrix at another point. Patch the filter output to the env. with comes out at the top and goes back in on the left side. This allows for incredibly complex patches. The matrix seems to only add clarity to patching. In itself useful but it does allow for the kind experiment that made the synthi famous.