Prelude no. 1 in D Flat Major

Short prelude I wrote on a theme I got while improvising. 

Written: July 31, 2019

this is strange and original as it relys on one chord (major/minor).

It's weird, but I feel like the final cadence was out of place. Like, the whole piece is kind of non-functional because the only harmonic movement is between the major and minor versions of the tonic.

But, then, at the end, you put in a I-V7-I... why?

I might have done like something playing off the Fb. Like, maybe an Fb-major (E-major) with an Ab/G# in the bass. So, you still have a I-V-I bass movement, but the chords fit with the aesthetic of the piece.

That's just one possibility. I'd play with some ways to make the ending stronger and more in character with the rest of the piece.