I have two pianos, one is a acoustic, but since I don't have a decent way of recording that I use a weighted electric connected to a midi recorder on my computer. So I have a midi file of piece, then I just play that though a patch file for sound. Export as wav, and I'm happy. I don't like playing the weighted electric. But it has began to annoy me that hours of improv which, in my opinion sound nice, will never be heard again. And only by me and my immediate family at the time.
As for musical quality, the strong G Minor chord is similar to the style of Beethoven, (Sonatina in G Major, its a song I play.) And the falling triads, (immediately after) are similar to those in Invention #13 in A minor by J.S. Bach. Some of the chording is inspired by a Russian Dance by Korobiniki, I believe, you would know it as 'the Tetris theme'. Besides the songs I play I listen to lots of classical music. Even with that said, I don't directly copy, and lots of the ideas, ostinatos, phrases, sequences, and chord changes are unique and original to me.
Here, one 3 minute song is pathetic, I have ten more minutes of recorded improv, I just need to export it.