Version 2.7.8c
This player not only supports the composer tag, it also groups by album when selecting a composer.
Select the Writer
Yes, this player supports the Composer tag!
Select a composer.
You get a list of all the albums (compositions in my case) and even in portrait the title is readable!
Select an album
You can see the movements, the performer and the album title.
In landscape it is even better.
Best what I have seen up to now interface wise.