Well, it’s not a plugin, it’s a sound built into the Yamaha MX49 that I edited. And unfortunately after you edit a stock instrument in the MX49 you lose the original name, and I don’t remember which one I started with. But it would be a retro analog synth-type sound
Hi Josh, thanks for the kind words! I'm using a Yamaha MX49 keyboard. I forget exactly which preset I started with, but it might have been the "Soft RnB" analog lead synth. I messed with the ADSR parameters and filter cutoff parameters and also assigned the expression pedal in my Line 6 Helix as a MIDI controller to both open up the filter and lower the volume. Hope that helps.
