Is there a way to do this with Musescore? I know it is possible because I've seen people create things that are impossible to play and upload them into Synthesia (sheet music boss on youtube), though I'm sure they must have been using an alternative program other than musescore. I am using the free version of Synthesia currently because I am awaiting a USB/keyboard cable and I am not certain it will work on my old keyboard.
I want to do this because I haven't quite perfected the song but I'd like to go ahead and upload it into Synthesia.
I do a bit of piano arranging and I have this score I want to move from Musescore into Synthesia.