I only want to thank all of you for your kindest help. This is how I understand the use of Internet (i.e. the opposite of the stupid "ILOVEYOU" and similar makers !).
The best way will be for me going on answering, when possible, to the various requests posted in the many forums.
I share this hobby of electronical music, and I will keep you informed of my progress in this matter.
Cheers !

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Pierre