Trying to get music out from my iPod first generation, IOS level 1.1.5 (4B1), model MB376LL
There is no official way to extract the tracks from an iDevice to a computer.
iTunes was always designed to be the master, any iDevice as merely a slave to that.
On Windows, however, it's much simpler than on Mac, because the device can be mounted to the computer like an external drive.
From Wondershare - Top Ways to Extract Music from an iPod touch
Note: they'd rather you bought their software to do this, but they include a manual method at the end.

Extract Music from the iPod on PC
Open &quot;Computer&quot; and you can see your iPod is displayed as a removable
disk. Click Tools &gt; Folder option &gt; Show hidden files and folders on
the ribbon and click &quot;OK&quot;. Open &quot;iPod-Control&quot; folder in the removable
disk and find the music folder. Add the folder to your iTunes Library.