What would be useful here is a setting in the player that could ignore any 'marked' tracks [i.e. don't play a marked track].
[And if a track was marked during playback it would remove it from the present playlist and it would be "out damn spot, out"].

That way, you'd be able to flag tracks you don't like/don't want to hear again and then when you get a chance you can permanently delete them using emplode without disrupting your music enjoyment on the road.

anyone - could this be set up as a Wendy filter? e.g. have a Wedndy filter for 'don't play Marked tracks', then I can simply turn this filter on if I want and never see marked tracks again?.

I don't use Wendy filters [apart from not knowing anyone called Wendy ;-P ].