Hi
I used to own an EX30L. But, I never really fooled around with MIDI on it. As I remember, it was Japan MIDI. That is, before the General MIDI standard came out. So, I think it's going to be tricky to set up. Plus, it doesn't have the general MIDI set of instruments. Only around 25 or 30 of them. Would you believe, when I bought my Yamaha PSR530, I had to GIVE my EX30L away. I tried to sell it, but found absolutely no buyers. I donated it to a first grade class in public school. But, for a year or two, I kept it to use as an amp for my 530. It sounded great!
Tom
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Tyros 4