Conventional thinking definitely has its drawbacks. Trained as I am to hear things according to harmonic formulas I often miss the point. Take what happened here this morning: Two young people playing a duet in E-flat, everything going fine until a chord with a D-natural kept coming out with a D-flat. Wrong note? Conventional thinking says so, but experience leads me to ask: Whose "fault?"

As it happens the composer has weighted the chords leading up to this one with so many A-flats that D-natural--the right note-- sounds wrong.

I call this great composition.

Better yet, it's fun.