Ethan Jordan Bortnick. ETHAN BORTNICK 11 YEAR OLD PIANIST, MUSICIAN, COMPOSER, ACTOR, ARTIST. A Rising Star in the music and entertainment world, Ethan. Youngest Musician to Headline a Solo Concert Tour New York – July 30, 2012. And now a proud Guinness World Record holder. The piano-playing supremo Youngest Musician to Headline a Solo Concert. nationally acclaimed child prodigy pianist.barely seven years old but he's already making waves as a musical wunderkind. Ethan's Musical Time Machine concert features 9 year-old, pianist, entertainer and composer Ethan Bortnick.