Only: it does not make sense esp. if you delete the contents of the field YEAR afterwards. You go from structured data in fields to an unstructured string in a single field.
I would no delete the contents in the field YEAR - because if you think different in the future, you can easily remove the data that corresponds with YEAR from the field ALBUM.
And: if you add YEAR to ALBUM, use a unique separator between the pseudo-fields for reasons of easier splittability. The hyphen is a bad separator in this respect.