Alternate Tunings SysEx help

Alternate Tunings SysEx help
« on: May 18, 2026, 04:31:57 PM »
Hi,

What is the purpose/content of the Alternate Tunings SysEx file which can be downloaded from the Sequential web site here:

https://sequential.com/support/download/fourm-sounds/

I hope someone will be able to help, because I'm trying to understand what this is about, but I can't find any specific information in the download page or elsewhere.

Thank you.


Re: Alternate Tunings SysEx help
« Reply #1 on: May 19, 2026, 05:39:20 AM »
https://forum.sequential.com/index.php?topic=3430.0

Please check this REV2 thread. It contains useful information.

In FOURM, you can switch the tuning system using the alternative tuning setting in PARAM 30.
It seems there are 65 different kinds.

Here are descriptions of the default Fourm alternative tunings:
Fourm-User-Guide_1.2.pdf
page 72 to page 103.
Appendix E: Alternative Tunings

By playing the arpeggiator and sequentially changing the Alternate tuning type, it's easy to hear the differences in the feel of each temperament.

You can also use the temperaments of various countries as a spice in your music.
You can use them to achieve an authentic folk music feel.
« Last Edit: May 19, 2026, 06:10:36 AM by Jpro600k »

Re: Alternate Tunings SysEx help
« Reply #2 on: May 19, 2026, 07:55:12 AM »
https://forum.sequential.com/index.php?topic=3430.0

Please check this REV2 thread. It contains useful information.

In FOURM, you can switch the tuning system using the alternative tuning setting in PARAM 30.
It seems there are 65 different kinds.


I thought 65 kinds were sufficient, and I didn't even know you could even "edit" these!

So if I get it correctly, it looks like the purpose of this file is to restore the default in case you change them then.

Thank you!


Re: Alternate Tunings SysEx help
« Reply #3 on: May 20, 2026, 06:39:30 AM »

I thought 65 kinds were sufficient, and I didn't even know you could even "edit" these!

So if I get it correctly, it looks like the purpose of this file is to restore the default in case you change them then.

Thank you!

Tuning settings can be saved for each preset program.

Because settings are saved for each preset program, if you select a different preset, the tuning settings selected in that preset will be used.

The ability to save the Alternate Tuning settings for each preset program is a very good feature.


« Last Edit: May 20, 2026, 06:49:16 AM by Jpro600k »

Re: Alternate Tunings SysEx help
« Reply #4 on: May 21, 2026, 05:29:35 AM »
Would you say this capability to select a different tuning per-patch would typically make sense for when synthesizing the sound of an instrument for which a different tuning is ontological (say an oriental flute)?

Otherwise in what case would you for example use this feature creatively?

Besides, do I understand correctly that what is associated is not the tuning itself, but the tuning index in the table* of tunings, in which case changing the table would change the actual per-patch tuning?

* which you could for example download from the instrument, tweak with a few hex-edit hacks, and then upload back to the instrument as a whole, and which you can restore as a whole thanks to the aforementioned file provided by Sequential?

Re: Alternate Tunings SysEx help
« Reply #5 on: May 22, 2026, 05:47:11 PM »
How about uniquely rewriting just one setting, transferring it, and then checking if it's reflected?
If you replace equal temperament with something else, you should be able to immediately hear that it's been rewritten after transferring everything.
All settings that had equal temperament selected should be replaced.
It should depend on the preset number of the alternative tuning setting.
If the same alternative tuning settings are selected for the other timbres, consistency should be maintained.

However, your worries may not go away,
If you want to confirm whether transferring the factory alternative tuning settings file will revert it to its original state, it might be best to get a direct answer from the manufacturer.

However, the overall atmosphere is clearly shaped by the melody played, the playing style, the expressiveness, and even other timbres and rhythms.
I believe that expressing this using only a single timbre would result in a very exciting piece.