Joey Alexander is the textbook definition of a wunderkind. The 19-year-old Indonesian jazz pianist taught himself to play jazz at six by listening to his father's jazz records, won the Grand Prix at the 2013 Master-Jam Fest when he was nine, and by 11 years old, he had released his first album My Favorite Things, the first Indonesian artist to crack the Billboard 200 album chart. He’s made waves for his virtuosic renditions of standards like Thelonious Monk’s Round Midnight, but he continues to grow as an artist: His fifth and latest album Origin (released last year) is his first to feature entirely original compositions.