iTunes: Move Library Location

Ok, so I've been running my iTunes off a 1T HD for some time but it was getting close to capacity so I just picked up a 3T HD... I thought I could just use SuperDuper to duplicate the drive contents, but that hasn't seemed to work and iTunes can't locate any of the music files. Does anyone have any advice? I did find this one how to guide and just want to make sure it will work before I go to the trouble of copying the files again:

https://www.imore.com/how-move-your-...nal-hard-drive

Thx in advance!!!

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