Editor / Librarian for the Sequential Six-Trak

Please read carefully otherwise you won’t know what you will get:

as long as there is no manual for the panel just question me if there is something that you don’t understand: roet32 (at)

The panel has been developed for firmware v14 from Bob Grieb: I d’ recommend this bug-fixed and improved firmware to everyone who is able to open the sixtrak and replace a socketed chip – no soldering required. You can get a ready burned eprom from Untergeek: “Unison Detune” and “LFO Keysync” are firmware v14 exclusive parameters. There may be early firmwares who do not allow editing via MIDI.

A general disclaimer:
Keep in mind that this panel is still in beta state. Beta means that the software is not fully tested and there may be bugs which have not been discovered yet. Therefore, everybody who is using this panel is a beta-tester not an end-user. Don’t get me wrong. Bug-reports and suggestions of any kind are very welcome, but I won’t accept blaming me of having problems with your synth (e.g. losing data) as a result of using this panel. This is a risk you are taking on your own when you are using it.

Six-Trak specific info – please read carefully:
It is not possible to send sysex-dumps to the editbuffer of the Six-Trak. This makes things a bit complicated – the panel will always OVERWRITE a patch on the synth when loading a patch from the librarian and in some other cases. That’s why you have to SAVE YOUR PATCHES if you don’t want to lose some of them. Apart from the panel itself there are reliable freeware tools to do this. If you need help saving your patches let me know.

In the Prefs/Hints tab you can choose if the panel should always use patch 99 as editbuffer or if it should use the actual selected patch.

Some time ago I made a tutorial for my SuperJX-panel. All my panels are more or less designed the same way so it may be useful to you.

The following paragraphs are somewhat applicable to all my editors. The buttons are just not at the same places as on the screenshots:

  • Setting up the Ctrlr panel
  • the VST-Plugin
  • Saving and loading Patches (partially)

IF YOU HAVE READ THE ABOVE TEXT CAREFULLY, you can download the Six-Trak panel here:

If you want a much simpler panel you can try out the panel made by Muve:

Six-Trak Editor

Editor for Sequential Circuits Six-Trak. It uses MIDI CC control for all available parameters including mod wheel.

Six-Trak Editor Screen


Built using CTRLR Revision 1400.

Key things needed to do on the Six-Trak before use:

– To enable changing programs (patches) by MIDI, hold Control Record and press 1.

– To enable changing parameters/mod wheel by MIDI, hold Control Record and press 4.

– The Six-Trak powers up in omni mode which is fine if it’s the only MIDI instrument you are using. If you need to change it to a specific MIDI channel, hold Track Record and press 3 to turn off omni mode. Then press Parameter then 36, then change the value to the MIDI channel of your choice.

The instructions are on the panel as well as it’s easy to forget and saves trawling through the manual every time.


Six-Trak Editor 1.1331.5 KB3,162


I used the font ‘Celtic’ for the Six-Trak logo, so it will just show in the default font if you don’t have that installed. There is a free alternative which looks very similar called Gael, you can download it here:

The Six-Trak is unable to send parameter data via MIDI, so the Editor will not be able to update changes. It can send/receive program changes and mod wheel data however, so they can update on the Editor if the settings are right. See page 65 of the manual for more info.

It would be great if someone could figure out how to make a patch library. This is beyond my knowledge, so hopefully someone else can take this on. If anyone wants to add features to the panel, be my guest as I will not make any updates. The manual can be seen here (MIDI implementation starts on page 57):