First of all I would like to say: this app is by far the best MPD-Client for Android I know, congratulations !
In my music collection I have a lot of artists that start with “The”, like The Beatles, The Doors or The Rolling Stones. These entries all appear in the lists under “T”, to find them better I would prefer them to appear under “B”, “D” and “R”.
The most versatile solution would be a list of articles that the user can freely determine, i.e. “The”, “Die”, “Le” etc., but for me personally “The” would already be very good!