Hello! I'm a beginner with Lilypond but have decent programming knowledge. Something I haven't managed to figure out is how to best organize my projects. It becomes a very long file if everything is in the same one, so I've tried splitting it into separate `.ly` files for lyrics, soprano, alto, tenor, bass, and so on. It works, but I'm guessing there are smarter ways to organize scores and lyrics.
I've heard about `.ily` files, and if anyone could provide me with links where I can learn and understand more, I would be grateful. I've of course searched the internet and tried to find resources, but it hasn't been very successful, so I'm taking the liberty to ask here and hope it's okay. Best regards, Mats-Olof Liljegren, an arranger residing in Sweden.