I spoke several times with him if he would be faster using the notation program, i his case Sibelius, he said no
Of course, one has to accustomed to a program to be able to fully use its potential, in the shortest amount of time...
Personally, and now I leave notation software aside and enter the audiovisual editing programs... I have made all my program leaders (lead in movies and lead outs) with Adobe Premiere, unable to make proper time to learn After Effects. I had since long reached the limit of my possibilities with Premiere alone, but just couldn't make time to browse through After Effects and get used to it. Which I now regret.
I have worked with Sibelius for quite some time now, and still 'discover' new things, alternative and/or faster ways to do things. Learning would go much quicker when I would've just spent a couple of weeks straight working with it.