Syntonica

Seismic is surprisingly intuitive and fun to use and might even be underrated.

I have used hardware synths and so am less interested in emulation and more in more unique sounds and how they can 'reproduce' and evolve over time.

I'd put an extra star for Seismic if it weren't for a bug which is when I open a saved sound, the waveforms appear wrong, even though the sound is correct if I recall. (I am using Ardour 5.12 64-bit on Windoze 7.).