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Re: [fluid-dev] Perfect, as opposed to Tempered tuning

From: R.L. Horn
Subject: Re: [fluid-dev] Perfect, as opposed to Tempered tuning
Date: Thu, 30 Oct 2014 08:58:17 -0500 (CDT)
User-agent: Alpine 2.00 (LNX 1167 2008-08-23)

On Thu, 30 Oct 2014, Fede Galland wrote:

If it's of any help, I'm attaching a MTS file that works on timidity but not on fluidsynth.

Short answer:  It doesn't work because that's not how you change tunings.

Longer answer:

The file contains a non-realtime 7E <responder ID> 08 01... "bulk tuning dump" sysex. These should only be sent out in response to a "bulk tuning dump request". Changing tunings in response to this message is not only wrong, it's *insane*.

Tunings are changed with a realtime "single note tuning change" sysex: 7F <target ID> 08 02....

See <http://www.midi.org/techspecs/midituning.php>.

I think I've managed to correct it. By hand. And I never, ever, ever want to do that again.

The attached MIDI file might not do the right thing, but at least it'll do something.

Attachment: xxx_corrected.mid
Description: MIDI audio

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