Prophet 5 rev 3
https://youtu.be/3vX-UKAryGo
Oberheim DMX original factory sequences
https://youtu.be/QbzMjO90h14
Roland SVC-350 11 Band Analog Vocoder Demo
https://youtu.be/cOO6xTXTeiA
MXR Pitch Transposer: vintage sound monster
https://youtu.be/tZRQIBC13H4