The long version of Heaven Knows is really not an extended mix of the original track with original or enhanced production elements. This long version does not have the distinctive swirling violin intro like on the 45/7" single or the distinctive horn/orchestral segment. It just starts with looped passages and they eventually bring in orchestral parts, actual vocals and the ending from MacArthur Park, which qualifies it as a medley.Of all the extended versions of Donna Summer 12"s from this period, like With Your Love, Hot Stuff and Sunset People, this longer version of Heaven Knows does not make the grade. Just because a version is longer does not automatically mean it is better. There are exceptions when a shorter version is the better, more concise version from start-to-finish, and the 45/7" single of Heaven Knows is one of them. Another one is the US promo-only 12" edit of Rock Lobster by the B-52's which is a better mastering/pressing and has more club appeal than the LP version which is too long.

"El Cielo Sabe" (Heaven Knows) is a unique mix, re-edited from the LP version of "MacArthur Park".