Modern software simulations are very accurate for conventional VCO-to-VCA-to-VCF type sounds, but struggle with audio frequency modulation of control voltages.

Modern software simulations are very accurate for conventional VCO-to-VCA-to-VCF type sounds, but struggle with audio frequency modulation of control voltages. Aaron Lanterman includes an example of this in his excellent lecture series on analog synthesis: https://www.youtube.com/watch?v=GZz8PJCfK1c&t=452s https://www.youtube.com/watch?v=GZz8PJCfK1c&t=452s