Sure!
First, place songindex.exe into the same folder as the .WAV files you want to use (songindex.pl is source code).
Then, open CMD by clicking the address bar, typing "cmd" and press Enter.
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The command prompt will open.
Copy and paste that, but put the
directory of the files (copy from address bar). Hit Enter.
In my case, the song was 291 seconds long, real length 4:52.
Of course, it needs to be in .WAV format so you'd need to convert your spicy .MP3s using something like Tenacity or foobar2000 otherwise it will not display anything.
(I'd nag about converting MP3s being an audiophile sin but that's out of the scope of this tutorial)
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The real use of this is when you extract all the music of the station you want to replace, it will tell the length for all of them.
Then you'd use it in a folder of the new songs you'd want to replace with, compare the lengths, add silence or trim as needed in something like Audacity.
I don't have the game's song files so here's an example with BeForU's third album:
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It seems it has problems parsing unusual filenames, which is fine lol
Hope that helps!