Table: music_release_details
Columns: version
length
album
remixed_by
year

Question: What is the version shown for the Length of 4:58?
SQL: SELECT "version" FROM music_release_details WHERE "length" = '4:58'

Question: What is the version shown for the Length of 5:20, and shows Remixed by —?
SQL: SELECT "version" FROM music_release_details WHERE "length" = '5:20' AND "remixed_by" = '—'