[PROBLEM] Library Regeneration Issue

[5-pot-fan]

1.39 TB. I can't see the total number of files, but based on one folder, the math comes to just shy of 30k files.

To count your files: 
find  your-file-location -name *.flac | wc -l

I don't know what you mean by this.

If you want to count your flac files on your drive, you can execute the commands I mentioned from a SSH terminal, or via the built-in "Web SSH" terminal under Menu - Configure - System

Thanks ils1974, I didn't know what that was. I'm not much of a computer mechanic.
Tim, thanks for the detailed instructions. However, I'm not getting very far. I can't get it to accept any text when it asks for password. Thoughts, anyone?
Also having trouble getting the sudo... line typed before SSH times out. I can't paste anything in that interface. How do you guys enter longer stuff like the second piece Tim's asking me to enter?

Hi,
If you are still having an issue with the SSH screen etc., would you like a step-by-step guide? No offence intended if this is something you have sorted.
Re-reading you posts it seems like you had an issue with the SSH login, something that crippled me in the past. A possible route around it seems drastic, but is not usually difficult, which is to completely reinstall Moode from the Raspberry Pi imager. This includes an option to define your SSH password even before loading Moode, and is a good place at which to do it. 
Anyway, let us know how you got on.