I am pleased to share an article I wrote for Downbeat magazine, appearing in the September 2018 issue, about re-harmonization techniques. The article begins on page 86: http://www.downbeat.com/digitaledition/2018/DB1809/_art/DB1809.pdf
To see my transcription of George Shearing's masterful re-harmonization on "Happy Days Are Here Again," please visit my BLOG by clicking the "Blog" button in the left menu bar.