I hate it when manufacturers post here apologizing for the fact that their product is still beta, but still want you to buy one so they can finish it.......
On the other hand, Roland (and all the manufacturers, really) NEVER post here apologizing for the fact their arrangers still have bugs and unfinished features, so at least Domenik deserves credit for 'fessing up........
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An arranger is just a tool. What matters is what you build with it..!