Why are Apple Music Artists not listed in accurate alphabetical order in Sonos App?

When I open the Sonos App and select Apple Music - Artists, I see all the artists in a kind of alphabetical-ish order. For example, all the As are together, the Bs together, etc. Yet there are a few random artists out of order. in B, everything is in the right order apart from Beck and Ben Folds Five, which appear after Buffalo Springfield (which would be the end of the B section ordinarily). There are a few of these, and it’s always a random artist or two at what is alphabetically the end of that letter. 

The other issue is that all the ‘The’ artists appear under T rather than The Beatles under B etc. 

Worth mentioning, all the artists are in the correct order in the Apple Music app. 

Can anyone offer any help?