I going to clone the soundchaser first, since I own one.
Soundchaser PCB desoldered:
Connector decoded:
It is possible to adapt a simple 49 key midi control keyboard to be attached to the sound chaser Interface. The alpha syntauri is a bit more complicated since it uses dynamic keys.
-Jonas
Very cool Jonas,
Nice job on the de-solder work. Thanks for sharing.
And for all who are interested, the software for this board can be D/L'd here:
https://mirrors.apple2.org.za/ftp.apple.asimov.net/images/hardware/sound/Sound%20Chaser.zip
Here are my archived documents, software and photos: Passport Designs
https://mirrors.apple2.org.za/ftp.apple.asimov.net/images/hardware/sound/Sound%20Chaser.zip
.... seems to be the stuff I gave to Antoine for archiving
I came across a new version of the interface:
IMG_1306.png
IMG_1307.png
it seems to be manufactured by JEN for a 61-key keyboard