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GrooveBox Editor Beta– Standalone and VST Editor for Roland MC-505, Roland MC-307, Roland JX-305 and Roland D2 series synthesizers

Multitimbral Midi Editor for Roland MC-505, MC-307, JX-305 and D2 Groove synthesizers. Complete control of all your synthesizer (8 Patch parts, Rhythm part, Effects, Part Common and System settings) from a single instance.

Beta release, any feedback will be welcome.



· Librarian
Load and save individual patches and rhythm patches in .syx format.

Load and save patch and rhythm soundbanks in .syx format.

Load patches from Preset, User and Card banks.

Write patches in User, Card and external banks.

Create new Patch and Rhythm soundbanks.

Drag&Drop patches between banks.

· Data storage

GrooveBox Editor let’s you create the following data and save them as a single file (extension .syx)

· Current Patch data (consisting of latest status of 7 Patches and 1 Rhythm Set).

· Current Part settings data (consisting of setup parameters of 8 Parts).

· Current Part Common settings data (consisting of effect parameters).

· Current System settings data (consisting of System Common settings and Scale Tune settings of 8 Parts).

Finally, GrooveBox Editor can backup and transfer Pattern and Patch data when a Bulk Dump is performed on the synthesizer, and save the data to file in .syx format.

· DAW Automation

Every parameter of the sound engine of every part is ready to be automated.

· Total Recall

GrooveBox Editor lets you edit all the Patch, Rhythm, Part and System parameters (up to 7675 parameters!) and save the latest edit status within the application. This means that you can easily recall the latest status of the previous edit simply by opening GrooveBox Editor.

· Parameter Locking

Lock any section of the synthesizer sound engine. For instance, lock Tone 1 Wave section and Amplitude Envelope. When loading or receiving a new patch, the locked sections will not change. Do you like the effect settings of a Part, or the filter section? Lock them and test any patch with those settings.

· Patch Randomizer

GrooveBox Editor provides a Patch Randomizer with several functions to control the process. It can be used in conjunction with Parameter Locking section to select which groups of parameters will be randomized.

· Joystick Modulator

Choose up to four parameters from any part and modulate them in a vectorial style.

· Instructions

The zip file contains both stand-alone and VST plugin version for 32 and 64 bit Windows systems, as well as a short manual.


Beta 2 version is available.

Fixes (16/12/2017):

Parameter EFX Delay Send Level was missing
Parameter EFX Reverb Send Level was missing
Parameter FMX Color didn’t send it’s value
Parameter FMX Depth didn’t send it’s value
Parameter Tone 3 Pitch Envelope Depth didn’t send it’s value
Skin Saturn fixed (was missing a color, resulting in broken GUI or crashes when this skin was selected at startup)
Modulation destinations are now correctly displaying their names
Sending Part Info Data (pressing Send Data button) as a whole was causing problems (initializing patches), so now this data is sent in a different way.
Added missing CC tab to Drum part


Download Link (Windows only)

68 Responses to “GrooveBox Editor for Roland MC-505, MC-307, JX-305 and D2”

  1. danhaglund

    Hi, was looking for a way to back up my 307, after i had a memory corruption and lost 10 years of patterns and patches … ggrrrr.

    Found this and it looks amazing – what a public service by Dasfaker!

    I can get it set up and ‘online’, all seems to be connected, but I tried to backup with a bulk dump by pressing “get” under “bulk dump”, it said “waiting”, and i set the 307 to transmit bulk dump (pattern & patch). somehow it didn’t work, and i wanted to try again but the buttons which said “get” now says “done”, and no matter what I do I cannot get it back to saying “get”!.

    I’ve tried closing and reopening the application, i’ve tried unplugging midi channels, turning the 307 off and back on etc.

    Any thoughts appreciated! 🙂

    Thanks again.

  2. danhaglund

    …just to add to the above, as I understand that there is no other way to get sequence data (patterns) out of the 307 and into the computer beyond the bulk dump approach? thx

  3. dasfaker

    Hi danhaglund

    When you press “get” the button label change to “waiting”. Then you must perform the dump operation on the 307. When it’s done (there is no progress bar to indicate the dump status so you must look at your 307), you must press again the button labeled “waiting” to save the file to disk.

    I can’t reproduce your issue here. Sometimes the button “waiting” is pressed when I open the editor, but pressing again and reopening the editor fix the button.
    Try deleting folder GrooveBoxEd located in C:\Users\User\AppData\Roaming and reopening the editor.

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