rkr has 42 effects: EQ Lineal, Compressor, Distortion, Overdrive, Echo, Chorus,
Phaser, Flanger, Reverb , Parametric EQ, Wah Wah, Alienwha, Harmonizer etc.
The effects are procesed in cascade... The order of effects are configurable by
the user.

The state of rack can be saved as 'presets'. Sets of presets can be stored as
'banks'. The rack also has an integrated tuner and can receive MIDI control
orders and can send MIDI notes to MIDI devices like synthesizers.