Removing duplicate songs on iPod after deleting them in iTunes

Factual Questions
1

I searched and the most recent thread suitable to just add this question to is from 2013, so here goes:

I have an iPod (4th gen?) and use iTunes on Windows to manage the music on it. Recently, I discovered I had done something that created a massive number of duplicate songs on my iPod.

So I looked on the internet and found out how to remove all the duplicates from my iTunes Library. Whole lot of clicking involved. But I managed to do it,

Now I’m wondering if the next time I connect my iPod to my computer it won’t delete the duplicate songs on my iPod (might even add the duplicate songs back into iTunes, who knows?).

So my question is whether I should do something more in my iTunes settings before connecting and syncing my iPod, or even if I should somehow manually remove the duplicates from my iPod in the same way I did it in iTunes?

Removing the duplicates in iTunes was tedious enough that I don’t want to have to do it again, so I’m asking first (simple internet search provides ambiguous or answers older than 5 years)

2

I have an old iPod Nano and use iTunes on Windows to manage my music. But I never sync, I just manually add and remove songs from the iPod. Many times I will go into the iPod, hit Ctrl A to select everything on the iPod, then hit delete to clear everything out.

Seems you could do something similar to clean yours out, then sync to reload it?

3

It’s been awhile since I updated my iPod (classic), but I seem to recall that songs deleted from the library were no longer found on the iPod after connecting to the library and updating. Should work that way for deleted duplicates.