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Discussion about the Korg PolySix synthesizer

Index last updated: 2026-04-28 23:40 UTC

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Re: [PolySix] Low cost note-on/off MIDI for PolySix

2015-04-18 by klosmon

Well, cool.
Will send $30 today.

Regarding Polysix MIDI used on the Monopoly -- I've attached other MIDI 
key assigner boards from the P6 to the MP;  one issue to be dealt with 
is the fact that the Monopoly keyboard starts on F, rather than C.

~GMM

On 4/18/2015 1:36 PM, Bob Grieb bobgrieb@yahoo.com [PolySix] wrote:
> Hello Group,
>
>    I designed a small pc bd that plugs in in place of the PolySix key 
> assigner
> and adds MIDI note on and note off.  It can also trigger the 
> arpeggiator using MIDI clk
> with various divide rates.   MIDI channel and divide rate are set by 
> holding down a key
> at power up, and are saved in EEPROM.  No other features are added.   
> No MIDI output
> is provided by my design.
>
>     If anyone is interested, I can supply either a pc bd, or a pc bd 
> and a programmed PIC
> chip if you want to build one.   I don't plan to offer assembled 
> boards. The pc bd plus
> programmed PIC chip is $27 + $3 S&H to USA addresses.   The other 
> parts to build up
> a board would cost another $10 or so, plus S&H from your supplier.
>
>    I actually have two versions, one for the PolySix and one for the 
> Poly61, since they used
> the same key assigner MCU.   I think it should also work in the 
> MonoPoly, but I have no way
> to test that.
>
>    Bob Grieb
>
>
>
>

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