VCO number 2 is tunable between a half - step below to an octave above VCO number 1 .
Very basic in its design and use , the Rogue featured a 32 - note keyboard and two VCOs .
VCOs   2 is tunable between a half - step below to an octave above VCOs number 1 .
Very basic in its design and use , the Rogue featured a 32 - note keyboard and two VCOs .