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So let's take a look at the extended MIDI parameters of EVB 3. So I am going to open up the hood. We can see down here in the bottom left we have these extended MIDI parameters, and I have this disclosure triangle as well, and so this is going to show the hidden features of EVB 3. So the first thing we have here is this MIDI Presetkey On. This has to do with the lowest octave, so from C0 to B0, which if you remember from earlier, that can trigger these preset registrations.
So I can turn that off here if I don't want that. The one reason I might not want that is if I have, in our Organ settings, this Ultra Bass set to on, because what that does is that it adds an extra octave to our lower and upper manual, so from C0 up to C1. And if I have Ultra Bass On and I have Preset key On, then I am will be triggering presets instead of hearing my lower notes. So you can toggle that right here. Next to that we have MIDI mode. This Parameter defines how the drawbars will respond to an external MIDI drawbar controller.
So depending on what model of MIDI controller you have, you will want to switch the setting here, and you can look up which one will apply to your drawbar controller. Next to that we have Keyboard Mode. And so right now it's set to Multi, and so what that means is our upper manuals or upper keyboard will be on MIDI Channel 1, our lower keyboard will be on MIDI Channel 2, and our foot pedals are going to be on MIDI Channel 3. Now, of course not everyone has two keyboards and a foot controller, so fortunately, there's a way you can have all three registers--so Upper, Lower, and Pedals--on one MIDI keyboard on one MIDI channel.
So the way I can do that is by clicking on Multi and it's going to change to Split. So, in Split mode, I can set a split between my upper and lower registers and then between the lower and pedals. So I define those right here. First what I will do is I will set up some registrations for our upper drawbars, our lower drawbars, and the pedals. So for our upper drawbars we will choose this one here and for our lower drawbars, let's set a very different setting, so choose this preset key. And then I am going to go ahead and pull down our Pedal drawbars as well.
So the way it splits now is that the upper and lower registers split at C3. So if I play up high on our keyboard, so I am up C4 now, and so we are on the upper keyboard. So now I am at C3 and so if I play below that, you can hear the sound changes, because now we are using the lower manual. So if I want to change this keyboard split, what I can do is just drag here and just change the note, or I can hit the Set button and just press the key on my keyboard.
So for example, I can change this to C2 by just playing a C2 on my keyboard. So I will go ahead and set the back to C3. So I will press Set once again, and now I will play C3, and there it is. And then I can adjust my lower keyboard and pedal split right here. So now that split is happening at C1, so that's okay. So what I will do is I will continue to play down on a keyboard, so here at C2, so this is still the lower keyboard. And when I get down to C1 and I go below that, well, we are not hearing anything.
That's because I have to take a look at the Transpose for our pedals. Right now it's set down an octave, so what I want to do is actually set that a bit higher, so we will set it up an octave. So when I play below C1 now, now we are hearing the pedals. So I can adjust the sound with the Pedal drawbars, and there we go. So at the bottom of the interface here we have the extended parameters. So the first thing we have here is the Dry Level. What this has to do with is the level of our organ sound when it's not going through the rotor cabinet.
Beneath that we have three parameters that relate to our Leslie rotor cabinet, so Brake, Horn Brake, and Drum Brake position. So we covered those in the video on the rotor speaker cabinet. Over on the right we have tje Reverb parameter, so we can set the Reverb to be either Pre or Post Rotor. Beneath that we have Velocity to Click, and so what this is going to be is how much a velocity that we are playing a note is can affect the volume of the click that's created by the scratchy or bad key contacts. Beneath that we have a Bass setting, so we have Bass fold back or we can set it to all the way down.
So typically it's set to fold back, and what that means is that in the lowest octave on our upper and lower manual, we don't have access to the lowest tone generators. So those are reserved for the pedals. If we set this to all the way down, when reusing the lowest octave in our upper and lower keyboards, we will have an extra-low harmonic that's typically reserved for the pedals. The last parameter we have here is Drawbar affects, and so what that means is if we have a drawbar MIDI controller, what is it going to affect? It can be set to current preset key, whatever we have selected here, and the other mode is only the B and the B-flat preset keys.
So in that case our MIDI controller would only adjust the Drawbar settings for the B and B-flat preset registrations. So now that we have taken a look at all of the parameters of the EVB 3, in the next video, let's here it in a musical example.
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