JP4-KBD MIDI retrofit enables Roland Jupiter-4 to be controlled via MIDI. You can remotely control the keyboard and speed of the arpeggiator by MIDI commands. The instrument then works like polyphonic MIDI sound expander.

Features:

• The instrument's keyboard is controlled manually and by MIDI Note On/Off commands simultaneously.
• The keyboard can be transposed in whole range of MIDI notes 0~127.
• Four modes of key priority can be chosen: Last / Higher / Lower / None.
• The instrument's tone generators can be detuned (in semitone steps) by MIDI Pitch Bend command. The bend range is from 0 to ±24 semitones.
• Any receiving MIDI channel or OMNI mode can be chosen by user.
• Arpeggiator can be synchronized with internal instrument's tempo generator or with external MIDI clock.
• Default values of all parameters are user programmable - they can be stored in internal memory of the interface.
• All original features of the instrument are not changed and it can be used the same way as before the interface installation.
• Installation of interface into the instrument is very easy.
• The product is covered by thirty months warranty - more info

Parameters adjustable by user (can be set via MIDI CC and SysEx Msg and stored in memory):

• MIDI Channel (1 to 16 / OMNI)
• Key Shift (+0 to +67 semitones)
• Key Priority (Last / Higher / Lower / None)
• Pitch Bend (Wheel) Range (from +-0 to +-24 semitones)
• Arpg Clock Rate (internal or 1~128 MIDI ticks)

MIDI implementation - reception only:

• Note On / Off (0~127)
• CC 16 - Key Shift parameter setting (0~127)
• CC 17 - Key Priority parameter setting (0~127)
• CC 18 - Pitch Wheel Range parameter setting (0~127)
• CC 19 - Arpg Clock Rate parameter setting (0~127)
• CC 64 - Hold
• CC 120 - ASO
• CC 121 - RAC
• CC 123 - ANO
• Pitch Wheel (0~16383)
• System Clock
• System Exclusive - setting of all parameters and selection of MIDI channel (1~16 / OMNI)