Can a Roland GR33 control a microKorg?

[Jerome]

If the Roland has a midi out cable and the Korg has a midi in there should be no problem. There might be a latency issue but I'm not sure how bad it will be. And just one more thing - it might be a better idea to use a Roland synth instead of a Korg. Not because it's better but because at least you know the products will be talking the same language. You can always use a soft-synth version of the Korg in your DAW.