The main samples are long, so the notes evolve as long as the key is held down. There is also seamless looping for extra sustain.
The patch responds to velocity, key-pressure (vibrato) and the mod-wheel (formant filter) in addition to having two dedicated controls in the custom Kontakt script.
No two notes are identical due to subtle random variations in the sounds and different attack samples triggered in a "round robin" fashion.
All topped off with a great convolution reverb..
The demo was played in real-time, with no midi sequencing!
