I was thinking about this too the other day.
Currently, there is a Locate > Advanced tool, which will fill in the Search dialog. This is useful, esp. when you have your Recent Command Count configured to maximum.
Two advances would make this even better:
1) If the pre-filled search could be restricted to the actual field selected:
eg. [Composer]=[Bach, Johann Sebastian] vs. Bach, Johann Sebastian
This one is important for many fields, such as Month or Track #, which currently enters too generic a value (e.g. "May" or "1"), and that is not useful since it matches too many values.
By restricting it to the cell selected, the Locate > Advanced menu would rarely have to be used. This would generalize Linkable columns to any column.
Consider how nice it would be to Alt-Click a cell to bring forth the results.
2) If there was an option to open the results in a new Tab or in the current Tab, this could obviate the need for the Link arrow in each column and serve two purposes. Maybe there is a Shift/non-Shift binding that could work. for both (1) and (2).