Apps on New Computer

I did copy my "music" folder but not my iTunes folder. My regular music folder has albums/songs from purchased CDs and/or music download from non-iTunes sites. Those were placed in my music folder on my old computer, that music folder was copied into the near-empty music folder on the new computer. I then installed iTunes from the Apple website on the new computer. From there, using iTunes I installed those tracks with the Add Folder/File command into iTunes. I didn't know that I could just copy the iTunes Folder from my old computer onto the new computer and my Apps and purchased Apple iTunes music would appear.

Can I now copy the iTunes folder from my old computer onto the new computer, overwriting the existing iTunes folder on the new computer? Or should I delete the iTunes folder on the new computer, before copying iTunes from old computer to the new computer? Hope this makes sense.