Key Rig covers all the basic needs for today's keyboardist in a single virtual rack housing four modules:

1. The SP-1 Stage Piano module serves up grands, Wurlie, Rhodes, FM, clav, pads and more. Each preset can hold a combination of two instruments with individual settings for Mix, Octave, Detune, Velocity and Tone. Owing to a dual effects section, each preset also has its own effect settings including delay, chorus, phaser and more.
2. The MS-2 Polyphonic Synthesizer delivers a new, easy way to call up and edit synth sounds. Each preset consists of sub-presets for each major section: filter, amp, mod and FX. Creating new sounds is as simple as combining these sub-presets in different ways and tweaking any associated parameters from there as desired.
3. The MB-3 Electromagnetic Organ authentically emulates the classic Hammond sound complete with rotary speaker. Standard features include nine drawbars that are pre-mapped to M-Audio brand USB MIDI controllers, percussion and variable key click, three chorus and three vibrato settings. Rotary speaker emulation includes tube overdrive, speed and tone controls to yield everything from glassy jazz chords to smoking rock leads.
4. The GM-4 General MIDI Module delivers 128 GM instruments plus a great GM drum kit. It instantly plays GM-compatible standard MIDI files from host applications and provides an extremely easy way of sequencing additional backing tracks.

Key Rig and Drum & Bass Rig are built on the same engine and therefore share some common features. The master MIDI/Mixer section of Key Rig and Drum & Bass Rig lets you route, split, layer and mix each set of four powerful modules in whatever way best suits users' performance and recording needs. A master effects section even allows for adding a common effect in addition to the individual effect section included with each instrument.