I am struggling a little bit with translating 'Playing Tracks'. (the former Now Playing' panel)
Technically, you could argue that the tracks in that panel are not playing, but queued.
Is this something you might want to change?
i agree with your definition and suggest you use that as the basis for your translation if it makes it easier but i wont change the english wording
O.k.
I noticed that the current "Playing Tracks" panel, in the 'hotkeys department' is still referenced as "Now playing list".
Those references should probably be changed to "Playing tracks list".
edit:
There are many other references in the translation file (and thus MusicBee itself) that still reference to 'Now Playing' instead of 'Playing Tracks'.
For example, even in the main configuration panel, that tab is still called 'Now Playing'. That might be very confusing, since it now refers to 'Playing Tracks', and not to the also existing 'Now Playing' (bar).
For the Dutch translation I have now changed them all.