In other players I've used in the past I've found it useful to be able to sort by or see at a glance when the tracks were last played when viewing an album or playlist. It probably wouldn't need to be as detailed as the date/time listed in the "Track Info" box - maybe something along the lines of the hours/minutes if in the last 24 hours and the day or number of days ago otherwise - but any format of information about when the track was last played as its own toggleable column would add some convenience.