Making the two hands independent from each other etudes are written. A good exercise is playing two against three notes or four against three notes in different left and right hand. Chopin made one in his "Methode de Methodes"
I wrote a short one myself studying at the Conservatorium.

Four beats three beat etude (composer/performer Ad van Nederpelt)

Actually I am a piano-musician by profession, but I discovered the huge possibilities of music designing with a computer.  I like to compose in very different styles like classical, pop, filmmusic, hardrock, synth rock, jazz, tango, etc. I hope you'll enjoy it and I do appreciate practical, and especially serious criticism as well.
"The most beautiful experience we can have is the mysterious. It is the fundamental emotion that stands at the cradle of true art and true science."
-Albert Einstein