The music app (green one with headphones) is truly disappointing on the 1520. Still, on WP 8.1, it seems it's designed for blind people.
Everything is oversized -- album art, song titles, etc. I can fit a whopping THREE albums on each page and can't even see most full song titles because the text is so big.
What a horrible use of screen space, and NOT A SINGLE OPTION to make things smaller. It looks like it was written by a high-schooler.