Hi there Angus, I’ve created template for Pianobook that could be of some use. Here is the link, the script is open to use so if it helps out, feel free to use it/edit it. Thanks for everything so far!
https://www.dropbox.com/s/xsg8fnf5rqstjg6/Matthew%20Jones%20-%20Pianobook%20Template%20V1.zip?dl=0