Letter-Seek is awesome, but it it would be better if it didn't show letters you dont have (or at least make it so when you choose a letter you don't have it goes to the nearist letter instead of staying in the same place).
I HAVE NO ALBUM ART
. My album art is embedded in my MP3 ID3/V2 tags, not as a .jpg. This has worked for every app that supports album art that I have used so far (WMP, SnapStream, Meedio, Music Match, etc.). Please look in to supporting this. I do not have album directories (since most of them whould only have 1 or 2 songs in the anyway), so it doesn't make since to assign one album art to an entire artist.
That brings me to browsing by artist in the media library... I do not want to see albums after choosing an artist. I pirate all my music song by song and I have almost no complete albums. When playing a song, I would like to see the name and art of the album it was first released on. Other than that I never want anything to do with albums. Artist mode should be artist, then all songs by that artist alphebatically. Your current artist mode should probably be album mode (because if you know the name of the album you want, you probably know which artist made it, so it's better to shorten the list by putting albums under their artist [but NOT for artist mode!]). Genre is harder because some people may like Genre/Artist/Album, but since I never want to deal with albums, I just want Genre/Artist.