There are scads of ways to add fillers to your songs, from counter-melodies to passing tones to unusual chord sequences to quartal voicings to…and on and on. Three of the easiest ways to take the chords of a song and make fillers out of them is to create open-voiced offset intervals called “straddles”, to break them up as 2-1 or 3-1 broken chords, and to rapidly “shake” the chord and then run it up the keyboard. Watch this short video to get the idea:

Keep learning! I hope you are always working on adding some new technique to your musical toolbox. For lots of ideas browse our online catalog of piano courses.