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I recieved a reply from The Allen company. Alas, it seems its the organ cannot keep up.
My problem seems to fall in the range of: trying to play too many notes... and with couplers engaged, even just eight notes can be too many.
"It almost sounds as if the note limit (polyphony) is being reached. As you should know, any digital musical instrument has a polyphony rating. The Allen Organ is no exception. With both octave couplers on and 1 key down the tone generator would play 3 notes. Great effort has been taken on our part in voice design and layout to prevent this from happening, but, it still can.
When using a PC to sequence music, be careful as to not layer many parts on the same manual. Each manual (or division) is assigned to a different MIDI channel. By using one manual to record music and “layer”, by using the couplers, is what could be causing your problem. Each manual should be played or recorded as a different part. Doing this could “fix” the problem.
Another inherent problem is “MIDI THRU”. Most PC sequencing programs have an internal switch called MIDI THRU. With this enabled and both the MIDI IN/OUT cables connected the computer will actually key the organ twice. What is happening is that what ever is sent to the computer is echoing back to the PC causing the same action to happen twice. This can, in effect, double the amount of keying information that is being sent to the organ. You should disable the MIDI THRU function in the PC sequencing program."
My problem seems to fall in the range of: trying to play too many notes... and with couplers engaged, even just eight notes can be too many.
"It almost sounds as if the note limit (polyphony) is being reached. As you should know, any digital musical instrument has a polyphony rating. The Allen Organ is no exception. With both octave couplers on and 1 key down the tone generator would play 3 notes. Great effort has been taken on our part in voice design and layout to prevent this from happening, but, it still can.
When using a PC to sequence music, be careful as to not layer many parts on the same manual. Each manual (or division) is assigned to a different MIDI channel. By using one manual to record music and “layer”, by using the couplers, is what could be causing your problem. Each manual should be played or recorded as a different part. Doing this could “fix” the problem.
Another inherent problem is “MIDI THRU”. Most PC sequencing programs have an internal switch called MIDI THRU. With this enabled and both the MIDI IN/OUT cables connected the computer will actually key the organ twice. What is happening is that what ever is sent to the computer is echoing back to the PC causing the same action to happen twice. This can, in effect, double the amount of keying information that is being sent to the organ. You should disable the MIDI THRU function in the PC sequencing program."
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