The Next Generation of Proteus Proteus 2000, Mo’ Phatt, Virtuoso, Xtreme Lead-1, Planet Earth, & Vintage Pro Virtual Instrument Native Instruments Player and NKS compatibility   The Proteus Rack Library was produced by the original E-MU sound and graphic designers. Starting with the original hardware sound samples, instruments are mapped and programmed to match the hardware sound modules. The powerful script programming integrates the hardware functionality to