the Unity package has no scenes at all and no files named "call_gp_decoder."
I'm a newbie, so perhaps I'm missing something obvious.

Hello,

This is an answer to your question @mauricek in Perlence/PyGuitarPro#14 (comment)
which is closed now. I'm a bit late, so I open a new call for improvement here

Since you created multiple projects in different languages with the same goal of parsing GP files, it might be a good idea to write a code independent specification of the structure of those files. I searched a bit and found that the project Kaitai (https://kaitai.io) could answer this need, but it might not be the only one.

I created a small POC by forking kaitai's repository. It's nowhere near finished and I don't have time at the moment to improve it. But it stills show that you can more or less easily parse a GP file using their approach:
https://github.com/MZehren/kaitai_struct_formats/blob/master/media/guitar_pro_5.ksy
Feel free to use this code if it is of any help for you.

Hi!

It looks like nobody is maintaining this project anymore. I have modified it to work as a dotnet core console app and I would like to continue maintaining it as an independent fork. However, this project does not have an open source license, could you please add one?

Hello. How are you.
How can I Export from Guitar Pro file to Midi file in C# Console Application ?
Thanks.

Hi! I need to convert > 1000 gp files in bulk, and your script is the only tool that I found in the whole fking internet =) Could you please specify how to run it, I never used Unity and can't understand what I'm doing wrong. I imported the file, nothing happens with Run button, when I try to Build & Run - log is full of errors.