OK! So … as a kind of magic, tachaaaan!! amsynth is now an official synth engine (as LV2-plugin).
I’ve to fight a little bit to get the presets banks working OK, but it’s almost perfect now.
Just update and enjoy …
It takes a little bit to load because it have over 1000 presets and LV2 system is really sloooow parsing the presets. Perhaps we could delete some banks?