Welcome to the forum, Luis. Does your LaunchKey 37 keyboard have a “local on/off” control? Normally, doubled notes on input is as a result of the “local” control on your keyboard being set to “on”; try setting it “off”.
Any small MIDI keyboard should work with Dorico. I personally use the M-Audio KeyStation 32 Mini, for example.
Wow, that was fast. Thank you very much for your quick response. I don’t think this keyboard has a local on/off because it is only a controller, but I will check. I was thinking about the sensitivity of the keys.
Thank you for your recommendation on the controller.
No, I am Mac User. I don’t refer to double sound. I am saying that when I am in write mode in Dorico, and I play C4 on my keyboard, I got two C4 in my staff, it doesn’t matter if it is a chord or a scale, so I have to delete the extra notes. It is weird. I’ve been using Dorico since 2016 and never had this problem before. I had a Kurzweil as my controller, but I wanted a smaller controller, and that’s why I got the Novation 37 Keys and get rid of the Kurzweil