Re: Oblique lines between two staves
Reply #1 –
I also suffer from music theory ignorance, so I can't answer your question about the meaning of these lines.
But I know in nwc they can be produced by the markup.rg user plugin.
This user plugin was created by the late NWC virtuoso Rick G.
It's very powerful but also very obscure.
So 6 months ago I wrote a dialog based user tool to compose a markup object:
Maybe this can be helpful.
Hope your 1st question will be answered soon by 1 of the music theory experts in the forum.