when downloading cds odd tracks detach and download elsewhere

Hello Bill,
I understand that you are importing songs into iTunes but are noticing that songs are not grouped together. I can help shed some light on this.
One thing that comes to mind is that song may have different artist or a group of artist on one song. If that is the case and you want to keep the album together, you do have the option of selecting those tracks and grouping them as part of a compilation. Take a look at the article below for more specific details on how to do this.
Why aren‘t songs with the same album art grouped together?
https://support.apple.com/en-us/HT204538
Take care