On a slightly different note, I never ran multiple arrangers concurrently. I’d buy a new arranger, transfer as much of the data (User programs, styles etc) to the new one, edit it until it uses the new sounds and effects etc., then use that exclusively.
I never enjoyed trying to use two similar products with different ways of naming things and doing things. Simpler to have just the one, master the OS, then keep it until something MASSIVELY superior came out (usually takes over ten years from one to the next generation), and skip all the models with barely any real difference.
To be honest, I never found any legacy data that I couldn’t edit to sound superior on the new keyboard (thank you Roland for the Makeup Tools!), so once I got everything transferred over, I barely ever played the old one again (got a decent G70 I’m thinking of getting rid of soon!)
Sometimes, life is simpler if you just move on and don’t look back! 🎹
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An arranger is just a tool. What matters is what you build with it..!