based off of what I'm hearing the progression sounds like this, relative to C:

first chord: A minor bass (the chord's root is A minor, and the chord's body has G major voicing)
second chord: F major
third chord: same as first, only thing that's different is the highest note. it doesn't change the chord!
fourth chord: C major

the voicing is another thing but there's the progression!

The distance between the bass and upper notes look like this

B 1-7-9-11
G 1-9-10-12
B 1-7-9-12-13
D 1-5-7-9

The first chord is actually an Aadd9 chord but in its 3rd inversion hence putting the B in the bass. (Root position looks like A-C#-E-B)

B-A-C#-E

The second chord is a Gadd9 chord in open position. (Root position looks like G-B-D-A)

G-A-B-D

The third chord is a F#maj11 with an omitted 9th in it's fourth inversion. Hence putting the B in the bass (Root position looks like F#-A-C#-E-B)

B-A-C#-E-F#

The fourth chord is a Aadd4 chord in its second inversion (Root position looks like A-C#-D-E

D-A-C#-E

Here's a quick remake I did.

https://soundcloud.com/dannystestaccount/remake-produerforum

Here's the download to the midi notes.

https://www.dropbox.com/home?preview=Midi+Notes.mid

The synth is just your basic detuned pad. My version contains more bass in it which I should've eq'd out to get it to sound more like the original. I'm not trying very hard though because it's aside from the point of this post.

I'm not to sure what ninth parallel was saying (No disrespect I thank you so much for this forum btw   )

EDIT: I finally understood what he was saying. He was naming the chords if the key of the song were to be transposed into A minor.

Cryophonik was a bit a closer but this is the correct answer. Keep in mind when it comes to weird chord progressions like these things do begin to get quite subjective. You can interpret chords in many different ways based off of there chord formulas.