The PDI Keyboard Chart is based on an MSB setting of 65 to 69 and an LSB of 0 for all the sounds. PDI organs do not send LSB messages so you can ignore LSB settings.

MSB is the same as VAR in the MIDI piston window!

I suggest setting all of the midi pistons on your PDI organ to use sounds with an MSB of 65. These can be any sounds of your choosing (or see my chart below.)

Here are some suggested sounds:

MIDI PISTON	SOUND	MSB	PGM
GT A	Cathedral	65	22
GT B	Chamb. Strings	65	28
SW A	Royal Trump 8’	65	112
SW B	Oboe Vibrato	65	69
CH A	Viols Chorus	65	103
CH B	Tender Flute	65	74
PD A	32’ Untersatz	65	80
PD B	32’ Bazuin	65	81

TO SET THESE CHART SOUNDS or YOUR FAVORITES

1. Hold SET and press the desired MIDI piston – it will flash

2. Release all pistons

3. In the window for that MIDI piston set the MSB (VAR) and PGM number with the Alpha-dial

4. Touch the MIDI piston or tab so as to turn it on – it will stop flashing and the sound should be there

The real secret is that when you have set all the midi pistons, one at a time, to these or your favorite sounds, do a MIDI Save procedure. This will save these sounds as defaults so they will be there when you turn the organ on.

To do this, you must be viewing one of the MIDI piston’s settings in the organ’s green window. If you are not looking at a MIDI window, hold SET and activate any of the MIDI pistons – it will flash. Now touch it again as if to turn it on and it will stop flashing. You can now proceed with the save procedure:

Hold SET and while continuing to hold SET, press and hold GEN CANCEL for as long as it takes to see the message that the settings were saved (about 5 seconds). Now you have all MIDI pistons set with an MSB (VAR) of 65!

Note: Be sure to set the VELocity to KBD to make the sounds respond to touch. Organ sounds are not velocity sensitive!

NOW PRINT THE KEYBOARD CHART AND CONTINUE BELOW

TO USE THE KEYBOARD CHART

1. Find the name of the sound you want

2. Find the key to press to get the sound
On the Keyboard Chart note that:
I = Bottom Keyboard (GT on 2-manual, CH on 3-manual)
II = Next keyboard up (SW on 2-manual, GT on 3-manual)
III = Next Keyboard up (PD on 2-manual, SW on 3-manual)

The default setting on the chart is an MSB of 65. MSB values other than 65 are listed after the key name

3. Hold SET and press a MIDI coupler – it will flash

4. Release all pistons

5. Press the key name – the MIDI piston will stop flashing

6. Play the sound

For instance, if you want Grand MX under PIANO, put it on any MIDI piston. Since all the MIDI pistons are already at MSB 65, and Grand MX is an MSB 65 sound, just hold SET and activate the desired MIDI piston and it will flash. Release all pistons and touch the first C# on the bottom keyboard (the GT on a 2-manual, the CH on a 3-manual). The sound should be there.

You can select a sound with an MSB other than 65 if you want. You just have to change the VAR in the green window to the desired MSB number.

Save your sound in a piston if you want to have it available. Remember, doing the MIDI SAVE procedure above is for the organ’s default settings for the MIDI pistons. Those are the sounds that will be there when you turn the organ on. It is a good starting point. If you select other sounds, save them in a memory piston.

I suggest ordering the book on the MX200 for the PDI Organs from Frog Music. It will make all of this clear. Many thanks to Noel Jones of Frog Music for his valuable input! Here is their website:

www.frogmusic.com

Good Luck and e-mail me if you have any questions. See the contact portion of our website!

Jim HockinJ