I downloaded ritmo and I got it working ok.
Here's a way to make it accessible to every user on your computer.
Install the ritmo.component at yourharddiskname/library/audio/plug-ins/components/ (these are the folder names to open)
- for now don't install anything else. What we will do next is find where the presets are located.
- open metro and place ritmo on a track
- go into metro's effects window and select the popup to do a 'Save Preset As..."
- when the dialog box opens choose 'Local' and not 'User'
- save preset as a unique name like 'abc123'
- go into the finder and search for abc123
- you will find it at yourharddiskname/library/audio/presets/manyetas/ritmo/
- go back to your installion disk and throw all your drumkits that came with ritmo into this ritmo location above.
You may have to quit metro and start it again but now all the ritmo drumkits appear as presets in metro's effects window popup when you place ritmo on a track now.
I think maybe the original problem might have been the ritmo component being "local" and the presets being "user" based......or the other way round. I do not know if that situation would stop ritmo from finding the presets, but the solution above worked for me.
I have a folder of aliases on my dock for quick access.
One of the aliases is the /library/audio/plug-ins/components/ folder so I know I am always placing audio units in the same location. Another alias is /library/audio/presets/. The third one is an idea I got from the metro folder......the VST plug-ins alias.
scoot.