A demo? Well, it's a perfect sample.
I can't note a single problem with this. I'm judging this based on the 26 seconds given. I'd be curious to hear the complete song. I loved the backing triplet strings during the onset. Excellent chords and great progression.
Hope you intend to complete it.
A good start
Well, it's a good start but it's nowere finished, I presume the full version is longer and contains variations but I cannot be sure since I cannot have a listen, although by judging the structure of this prelude, I would guess the result would be interesting to hear...
4/5 if you plan on posting the full version I would be happy to hear it.
Please contact me if you would like to use this in a project. We can discuss the details.