Need help recognizing/identifying piece of classical music

[cporter]

When I was younger, I played this wonderful classical piano solo that had a very loud and fast beginning. But for the life of me I cannot remember what it's called or who composed it. I figured the experts in this forum might be able to listen to my (probably very flawed) recall of the beginning of the song and help me identify the piece. I know the right hand begins playing octaves while the left hand does a bit more movement. I included an audio recording of what I believe the right hand sounds like at the beginning of the piece. Thank you for any and all guesses!! 

[fftransform]

Is that the theme from the actual opening, or that's the main theme?  Sounds like a Brahms piece, trying to remember which.  One of the Op. 116 or maybe from the Sonata 2?  It's on the tip of my tongue...  Or maybe it was Schumann.  I think it might have been in F Minor because my brain keeps trying to meld it with the Schumann Sonata No. 3 1st movement.

It has a sort of 'fugato' flavor, right?  And after the theme you played, there is a sort of active chorded passage followed by some huge, thundering chords right?

EDIT:

[cporter]

Oh my goodness, that Youtube clip you added is the EXACT piece! You are a genius and I am so so grateful!!

[fftransform]

Oh my goodness, that Youtube clip you added is the EXACT piece! You are a genius and I am so so grateful!!

naw I never would have remembered, I haven't listened to this piece in probably 10 years.  I asked on another forum haha  I was stuck in Brahms/Schumann.

Like, in my brain I could 'play back' a good couple minutes of this piece (tho I forgot the tiny intro section and started at the octaves still on the 1st page, hence 'fugato'-'active chords'-'big chords') but I was making zero progress on what it was from.  I'm really terrible at this sort of thing.