I just had this idea come to mind. What if I combine the Waltz and the Sonata? Here is my proposed form:
I call the piece that I am composing, Valse Quasi una Sonata, which translates to Waltz almost like a Sonata. As you can see from the image, I use the Dominant more as a bridge than a true Dominant. This is how I bridge to the Subdominant with the Dominant:
C major -> C minor chord(or the note Eb) -> Bb major
I have this bass pattern occurring throughout the piece:
Root, Chord, Chord
Often the 2 chords will be an inversion apart, but when the right hand gets into the bass clef, the chords are sometimes the same. The Root is usually at least a fifth down from the first chord, but particularly with the F major chord, I find that I can only do that when the melody goes up high. If it stays in the first octave, I have to have the first F major chord be in first inversion, a third up from the root. The hardest part I have found so far about composing this piece is having the rhythm of the Waltz and the form of the Sonata, while keeping the piece coherent.
So what do you think of my idea of combining the rhythm of the Waltz with the form of the Sonata?