There are multiple ways to store the recording date. Essentially it is stored with relationships to work, place, event and/or area. Pease see the ticket I linked above.
The open question is which dates to use in case of multiple different dates or for date ranges. What is the reocording date if it says “Recorded between August and September 2013 at Studio A, vocals recorded in Studio X between September and November 2013, drums recorded January 2014 in Studio Y”?
So far there hasn’t been much feedback on that question.