The Osmose 61 is an upgrade to my current Osmose 49 so its really the same synth but with an extra octave, I guess the big question is - is it worth upgrading and my answer is a tentative yes, the 61 is more playable but this really depends on how you intent to play an Osmose, I use in mainly for leads so do I need an extra octave? probably not, however if using to control VST's then its a real benefit and I really believe when the editor is released 2026 the Osmose will really shine. I am very pleased I purchased the 61.