Play just the C chord (use only C and G) with your left hand. I recommend removing the E from the C chord to get the open sound. And apply the right pedal (to sustain the note). Listen to the left hand sample.
Play the C scale with your right hand, replacing the F note with F#. Hear the distinct note of F#; F# is part of the D chord. By having the left hand play the C chord and right hand play the C scale with F#, we are playing both C and D chords. This is part of the polytone. Listen to the right hand of new age piano music.
Keep the left hand playing C and G and hold for a few measures and then repeat the C and G again. Also, you can press C & G down at the same time. Focus the right hand on playing the C scale with the F# note frequently. It will create a unique dream-like sound. Listen to the new age piano music.