On Wed, 04 Sep 2019 10:34:21 GMT, Alister 
declaimed the following:

>Not Necessarily so. To eliminate ghosting you simply need a diode on each
>switch (how do you think a quality computer keyboard manages N Key
>rollover?).
>16 io pins gets you 8*8 = 64 keys so a full piano (81 keys if i remember
>correctly) still only requires 9 by 9.

 But would the OP be up to adding 64+ additional discrete components?
{Of course, this whole part of the discussion is predicated on the OP
wanting to create a MIDI controller module, vs just a capture/playback
system).


--
 Wulfraed                 Dennis Lee Bieber         AF6VN
 wlfraed@ix.netcom.com    http://wlfraed.microdiversity.freeddns.org/

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