what key is this

[The First Don]

Am

E sus4

E add9 aug5

C add9 no5

F# flat5 sus4

C major 13th no3 no5

Bm no5

B5

A no5

E5

A

F#

E

[mikeh]

I'm thinking E

[Purge]

I'm thinking G. ( G A B C D E F# ) With an accidental every now and then...

Or more appropriately, G modulating over to E.

[famous beagle]

Without hearing a vocal melody, it's impossible to tell what key a lot of progressions are in, and this one's no exception.

Is this an actual song or just a bunch of random chord names?

If it's one of your songs, could you show us which voicing you're using for each chord? That may help clear things up a bit.

Eadd9 aug 5 is kind of reduntant. (Aug is referring to the 5th, so you don't need to say 5)

[The First Don]

I thought it was G major modualting to Em with an accidental Db; what do you think?