Pulsating Lead by Martin Kutschker
The sound is defined by the LFO modulating the PW. Play with different pulse widths, modulation depth (ATT 2) and speed (RATE).
Further adjustments can be made tweaking the transition time between the two trimbres (SLEW).
The delay has a nice slap-back when playing short notes and beefs up the sound for longer notes.
Feel free to use a filter ENV or DELAY of your own taste.