VLC also appears to have a TUI interface. Check out the VLC wiki

There’s also a CLI interface accessible through cvlc

It works.

Which is a quality of standard that Windows does not maintain. I wouldn’t wish that garbage on my worst enemy.

How? It’s not even a monospace font

There’s also mp3gain, but this looks better maintained

Web services which are more than likely running on Linux servers…

Is the website old enough to be online?