I'd like to announce that my LV2 port of the famous mda e-piano
plug-in is ready for download! 
When I was checking out the mda-lv2 ports, I noticed that the
instruments were not actually playable. I could not get them to work
in either lv2_jack_host or in Ardour2 or Ardour3.
So , here is the first and only (to my knowledge) native LV2 port of
the mda e-piano. There is no GUI yet, but once I figured out how to
add a GUI I'll be adding one.
I'd be very happy to receive comments and suggestions on the code.
My next target will be the mdaPiano plug-in---I might actually start
soon when the GUI stuff causes me too much of a headache...