Downloading Music from Catalina Music App for use in a car

I am confused about downloading music from my Mac (with Catalina) and maintaining the integrity of the albums. Specifically, I have my music stored on my Mac running Catalina. I can see the albums and open them to reveal the songs in the albums. Then, I exported my music from Music (by selecting all the songs in the songs panel) onto a USB for use in my Tesla. When I view the music on my car much (about half) of the music remains collected as Albums but many MANY of the albums are not linked and show up as individual songs. This is not satisfactory. Am I missing some elementary step? I hope my query has provided enough detail. Earl