Alphabet list by scrollbar for quicker navigation

Would be nice to have a quicker way to navigate through long lists of artists/albums than having to scroll with finger many, many times.
In some applications (like phone contacts) as soon as you start scrolling you get a pop up with an alphabet and you can directly jump to a start letter and then continue scroll from there.
Possible options:

  • alphabet adapt to selected gui language
  • as an gui option add it as a permanent quickaccess bar at the top/or on the side (for tablets and touch screens with more space)