Single
Releases with 1 to 3 tracks where all tracks are under 10 minutes in length should be classified as Singles.
EP
A release is only an EP if it has:
– One to three tracks with one track at lease 10 minutes long
– Four to six tracks with a total running time of 30 minutes or less
Album
Every release containing more than 6 tracks and/or exceeding a total runtime of over 30 minutes is an album.