In 1980, Harada was taught at the University of Music and Performing Arts Vienna by Hermann Schwertmann and then took lessons from Jacob Lateiner at the Juilliard School in New York in 1982.
A stipend from Rotary International led him to the Hanover University of Music, Drama and Media where he successfully completed the concert examination by Karl-Heinz Kämmerling.
His repertoire is centred on classical and romantic music (Beethoven, Mozart, Chopin, etc), but also includes a wide range of virtuosic pieces (Ravel, Debussy, Gershwin, etc).
Additionally, Harada is very familiar with modern music for the piano, having played the premieres of compositions from Witold Szalonek, Gyu-Bong Yi and others.
A collection of compositions for starting pianists titled "Album der Insel Spiekeroog" is available for free online.