player continues playing (unasked for) music after end of (asked for album)

[hiccup]

You definitely have Auto-DJ activated:



I don't use the default skin, but if you hover over the icons bottom right, there should be something like 'shuffle on/off/auto-dj'
 
(I like your musical taste b.t.w.)

[avib]

got it!
it's quite confusing  (and not very user-friendly..) - this auto dj & shuffle setting..

thnx for the help in tracking this small but a bit annoying feature.
(and thnx about the comment about the music I like, too :-) )

[hiccup]

Great. (thnx psychoadept for having the right clue)

But you must have clicked the shuffle/auto-dj button all by yourself.
So forgive me that I don't support your observation on 'annoying' and 'not user-friendly'.