Well, perhaps I should have said, "The interface will most probably not help you." I would bet that OP who's only contemplating buying a keyboard...
Studio One does have an issue with refreshing the plugins list properly if you have updated or removed something. This is the only workaround...
Unless you're going to record through a microphone, you don't need an interface. Keep it as simple as possible if you can. The interface won't...
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