Hi
The best thing for correcting notes is to go and get Cubase basic and do the correcting in the piano roll. Bandlab is free and you can try that (that was Sonar Platinum Producer).
So much easier than fiddling on the keyboard itself. No different from a lego building set.
If you have a computer and want to be adventurous go for Cubase 10 Pro and learn that. I am finding this program unbelievable the more i delve. The Genos works great with it
You can even move blocks of notes, alter volumes ,pan etc. also much more that you can only dream about.
The only thing to get over is the frustration of learning and making a load of mistakes.
Yes , you can completely destroy your good recording ,but then you can go back to your original if you save first copy and have another go until satisfied.
All the best
John