Extract presets dumped to tape

OP-1 Help
#1

Hi everyone!
I’m trying to write an utility to extract the presets dumped on the tape of the op1, does anyone know where can i find any information on the format of the presets?

Luca

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#2

Hi!
I saw the drum patch format reverse engineering only. It looks like you need to do the same work yourself.

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#3

these should be helpful


and

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#4

thank you both! i’ll dig into!